| /* |
| * drivers/net/ethernet/mellanox/mlxsw/spectrum.c |
| * Copyright (c) 2015-2018 Mellanox Technologies. All rights reserved. |
| * Copyright (c) 2015-2017 Jiri Pirko <jiri@mellanox.com> |
| * Copyright (c) 2015 Ido Schimmel <idosch@mellanox.com> |
| * Copyright (c) 2015 Elad Raz <eladr@mellanox.com> |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * 3. Neither the names of the copyright holders nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * Alternatively, this software may be distributed under the terms of the |
| * GNU General Public License ("GPL") version 2 as published by the Free |
| * Software Foundation. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
| * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| * POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include <linux/kernel.h> |
| #include <linux/module.h> |
| #include <linux/types.h> |
| #include <linux/pci.h> |
| #include <linux/netdevice.h> |
| #include <linux/etherdevice.h> |
| #include <linux/ethtool.h> |
| #include <linux/slab.h> |
| #include <linux/device.h> |
| #include <linux/skbuff.h> |
| #include <linux/if_vlan.h> |
| #include <linux/if_bridge.h> |
| #include <linux/workqueue.h> |
| #include <linux/jiffies.h> |
| #include <linux/bitops.h> |
| #include <linux/list.h> |
| #include <linux/notifier.h> |
| #include <linux/dcbnl.h> |
| #include <linux/inetdevice.h> |
| #include <linux/netlink.h> |
| #include <net/switchdev.h> |
| #include <net/pkt_cls.h> |
| #include <net/tc_act/tc_mirred.h> |
| #include <net/netevent.h> |
| #include <net/tc_act/tc_sample.h> |
| #include <net/addrconf.h> |
| |
| #include "spectrum.h" |
| #include "pci.h" |
| #include "core.h" |
| #include "reg.h" |
| #include "port.h" |
| #include "trap.h" |
| #include "txheader.h" |
| #include "spectrum_cnt.h" |
| #include "spectrum_dpipe.h" |
| #include "spectrum_acl_flex_actions.h" |
| #include "spectrum_span.h" |
| #include "../mlxfw/mlxfw.h" |
| |
| #define MLXSW_FWREV_MAJOR 13 |
| #define MLXSW_FWREV_MINOR 1620 |
| #define MLXSW_FWREV_SUBMINOR 192 |
| #define MLXSW_FWREV_MINOR_TO_BRANCH(minor) ((minor) / 100) |
| |
| #define MLXSW_SP_FW_FILENAME \ |
| "mellanox/mlxsw_spectrum-" __stringify(MLXSW_FWREV_MAJOR) \ |
| "." __stringify(MLXSW_FWREV_MINOR) \ |
| "." __stringify(MLXSW_FWREV_SUBMINOR) ".mfa2" |
| |
| static const char mlxsw_sp_driver_name[] = "mlxsw_spectrum"; |
| static const char mlxsw_sp_driver_version[] = "1.0"; |
| |
| /* tx_hdr_version |
| * Tx header version. |
| * Must be set to 1. |
| */ |
| MLXSW_ITEM32(tx, hdr, version, 0x00, 28, 4); |
| |
| /* tx_hdr_ctl |
| * Packet control type. |
| * 0 - Ethernet control (e.g. EMADs, LACP) |
| * 1 - Ethernet data |
| */ |
| MLXSW_ITEM32(tx, hdr, ctl, 0x00, 26, 2); |
| |
| /* tx_hdr_proto |
| * Packet protocol type. Must be set to 1 (Ethernet). |
| */ |
| MLXSW_ITEM32(tx, hdr, proto, 0x00, 21, 3); |
| |
| /* tx_hdr_rx_is_router |
| * Packet is sent from the router. Valid for data packets only. |
| */ |
| MLXSW_ITEM32(tx, hdr, rx_is_router, 0x00, 19, 1); |
| |
| /* tx_hdr_fid_valid |
| * Indicates if the 'fid' field is valid and should be used for |
| * forwarding lookup. Valid for data packets only. |
| */ |
| MLXSW_ITEM32(tx, hdr, fid_valid, 0x00, 16, 1); |
| |
| /* tx_hdr_swid |
| * Switch partition ID. Must be set to 0. |
| */ |
| MLXSW_ITEM32(tx, hdr, swid, 0x00, 12, 3); |
| |
| /* tx_hdr_control_tclass |
| * Indicates if the packet should use the control TClass and not one |
| * of the data TClasses. |
| */ |
| MLXSW_ITEM32(tx, hdr, control_tclass, 0x00, 6, 1); |
| |
| /* tx_hdr_etclass |
| * Egress TClass to be used on the egress device on the egress port. |
| */ |
| MLXSW_ITEM32(tx, hdr, etclass, 0x00, 0, 4); |
| |
| /* tx_hdr_port_mid |
| * Destination local port for unicast packets. |
| * Destination multicast ID for multicast packets. |
| * |
| * Control packets are directed to a specific egress port, while data |
| * packets are transmitted through the CPU port (0) into the switch partition, |
| * where forwarding rules are applied. |
| */ |
| MLXSW_ITEM32(tx, hdr, port_mid, 0x04, 16, 16); |
| |
| /* tx_hdr_fid |
| * Forwarding ID used for L2 forwarding lookup. Valid only if 'fid_valid' is |
| * set, otherwise calculated based on the packet's VID using VID to FID mapping. |
| * Valid for data packets only. |
| */ |
| MLXSW_ITEM32(tx, hdr, fid, 0x08, 0, 16); |
| |
| /* tx_hdr_type |
| * 0 - Data packets |
| * 6 - Control packets |
| */ |
| MLXSW_ITEM32(tx, hdr, type, 0x0C, 0, 4); |
| |
| struct mlxsw_sp_mlxfw_dev { |
| struct mlxfw_dev mlxfw_dev; |
| struct mlxsw_sp *mlxsw_sp; |
| }; |
| |
| static int mlxsw_sp_component_query(struct mlxfw_dev *mlxfw_dev, |
| u16 component_index, u32 *p_max_size, |
| u8 *p_align_bits, u16 *p_max_write_size) |
| { |
| struct mlxsw_sp_mlxfw_dev *mlxsw_sp_mlxfw_dev = |
| container_of(mlxfw_dev, struct mlxsw_sp_mlxfw_dev, mlxfw_dev); |
| struct mlxsw_sp *mlxsw_sp = mlxsw_sp_mlxfw_dev->mlxsw_sp; |
| char mcqi_pl[MLXSW_REG_MCQI_LEN]; |
| int err; |
| |
| mlxsw_reg_mcqi_pack(mcqi_pl, component_index); |
| err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(mcqi), mcqi_pl); |
| if (err) |
| return err; |
| mlxsw_reg_mcqi_unpack(mcqi_pl, p_max_size, p_align_bits, |
| p_max_write_size); |
| |
| *p_align_bits = max_t(u8, *p_align_bits, 2); |
| *p_max_write_size = min_t(u16, *p_max_write_size, |
| MLXSW_REG_MCDA_MAX_DATA_LEN); |
| return 0; |
| } |
| |
| static int mlxsw_sp_fsm_lock(struct mlxfw_dev *mlxfw_dev, u32 *fwhandle) |
| { |
| struct mlxsw_sp_mlxfw_dev *mlxsw_sp_mlxfw_dev = |
| container_of(mlxfw_dev, struct mlxsw_sp_mlxfw_dev, mlxfw_dev); |
| struct mlxsw_sp *mlxsw_sp = mlxsw_sp_mlxfw_dev->mlxsw_sp; |
| char mcc_pl[MLXSW_REG_MCC_LEN]; |
| u8 control_state; |
| int err; |
| |
| mlxsw_reg_mcc_pack(mcc_pl, 0, 0, 0, 0); |
| err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(mcc), mcc_pl); |
| if (err) |
| return err; |
| |
| mlxsw_reg_mcc_unpack(mcc_pl, fwhandle, NULL, &control_state); |
| if (control_state != MLXFW_FSM_STATE_IDLE) |
| return -EBUSY; |
| |
| mlxsw_reg_mcc_pack(mcc_pl, |
| MLXSW_REG_MCC_INSTRUCTION_LOCK_UPDATE_HANDLE, |
| 0, *fwhandle, 0); |
| return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mcc), mcc_pl); |
| } |
| |
| static int mlxsw_sp_fsm_component_update(struct mlxfw_dev *mlxfw_dev, |
| u32 fwhandle, u16 component_index, |
| u32 component_size) |
| { |
| struct mlxsw_sp_mlxfw_dev *mlxsw_sp_mlxfw_dev = |
| container_of(mlxfw_dev, struct mlxsw_sp_mlxfw_dev, mlxfw_dev); |
| struct mlxsw_sp *mlxsw_sp = mlxsw_sp_mlxfw_dev->mlxsw_sp; |
| char mcc_pl[MLXSW_REG_MCC_LEN]; |
| |
| mlxsw_reg_mcc_pack(mcc_pl, MLXSW_REG_MCC_INSTRUCTION_UPDATE_COMPONENT, |
| component_index, fwhandle, component_size); |
| return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mcc), mcc_pl); |
| } |
| |
| static int mlxsw_sp_fsm_block_download(struct mlxfw_dev *mlxfw_dev, |
| u32 fwhandle, u8 *data, u16 size, |
| u32 offset) |
| { |
| struct mlxsw_sp_mlxfw_dev *mlxsw_sp_mlxfw_dev = |
| container_of(mlxfw_dev, struct mlxsw_sp_mlxfw_dev, mlxfw_dev); |
| struct mlxsw_sp *mlxsw_sp = mlxsw_sp_mlxfw_dev->mlxsw_sp; |
| char mcda_pl[MLXSW_REG_MCDA_LEN]; |
| |
| mlxsw_reg_mcda_pack(mcda_pl, fwhandle, offset, size, data); |
| return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mcda), mcda_pl); |
| } |
| |
| static int mlxsw_sp_fsm_component_verify(struct mlxfw_dev *mlxfw_dev, |
| u32 fwhandle, u16 component_index) |
| { |
| struct mlxsw_sp_mlxfw_dev *mlxsw_sp_mlxfw_dev = |
| container_of(mlxfw_dev, struct mlxsw_sp_mlxfw_dev, mlxfw_dev); |
| struct mlxsw_sp *mlxsw_sp = mlxsw_sp_mlxfw_dev->mlxsw_sp; |
| char mcc_pl[MLXSW_REG_MCC_LEN]; |
| |
| mlxsw_reg_mcc_pack(mcc_pl, MLXSW_REG_MCC_INSTRUCTION_VERIFY_COMPONENT, |
| component_index, fwhandle, 0); |
| return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mcc), mcc_pl); |
| } |
| |
| static int mlxsw_sp_fsm_activate(struct mlxfw_dev *mlxfw_dev, u32 fwhandle) |
| { |
| struct mlxsw_sp_mlxfw_dev *mlxsw_sp_mlxfw_dev = |
| container_of(mlxfw_dev, struct mlxsw_sp_mlxfw_dev, mlxfw_dev); |
| struct mlxsw_sp *mlxsw_sp = mlxsw_sp_mlxfw_dev->mlxsw_sp; |
| char mcc_pl[MLXSW_REG_MCC_LEN]; |
| |
| mlxsw_reg_mcc_pack(mcc_pl, MLXSW_REG_MCC_INSTRUCTION_ACTIVATE, 0, |
| fwhandle, 0); |
| return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mcc), mcc_pl); |
| } |
| |
| static int mlxsw_sp_fsm_query_state(struct mlxfw_dev *mlxfw_dev, u32 fwhandle, |
| enum mlxfw_fsm_state *fsm_state, |
| enum mlxfw_fsm_state_err *fsm_state_err) |
| { |
| struct mlxsw_sp_mlxfw_dev *mlxsw_sp_mlxfw_dev = |
| container_of(mlxfw_dev, struct mlxsw_sp_mlxfw_dev, mlxfw_dev); |
| struct mlxsw_sp *mlxsw_sp = mlxsw_sp_mlxfw_dev->mlxsw_sp; |
| char mcc_pl[MLXSW_REG_MCC_LEN]; |
| u8 control_state; |
| u8 error_code; |
| int err; |
| |
| mlxsw_reg_mcc_pack(mcc_pl, 0, 0, fwhandle, 0); |
| err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(mcc), mcc_pl); |
| if (err) |
| return err; |
| |
| mlxsw_reg_mcc_unpack(mcc_pl, NULL, &error_code, &control_state); |
| *fsm_state = control_state; |
| *fsm_state_err = min_t(enum mlxfw_fsm_state_err, error_code, |
| MLXFW_FSM_STATE_ERR_MAX); |
| return 0; |
| } |
| |
| static void mlxsw_sp_fsm_cancel(struct mlxfw_dev *mlxfw_dev, u32 fwhandle) |
| { |
| struct mlxsw_sp_mlxfw_dev *mlxsw_sp_mlxfw_dev = |
| container_of(mlxfw_dev, struct mlxsw_sp_mlxfw_dev, mlxfw_dev); |
| struct mlxsw_sp *mlxsw_sp = mlxsw_sp_mlxfw_dev->mlxsw_sp; |
| char mcc_pl[MLXSW_REG_MCC_LEN]; |
| |
| mlxsw_reg_mcc_pack(mcc_pl, MLXSW_REG_MCC_INSTRUCTION_CANCEL, 0, |
| fwhandle, 0); |
| mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mcc), mcc_pl); |
| } |
| |
| static void mlxsw_sp_fsm_release(struct mlxfw_dev *mlxfw_dev, u32 fwhandle) |
| { |
| struct mlxsw_sp_mlxfw_dev *mlxsw_sp_mlxfw_dev = |
| container_of(mlxfw_dev, struct mlxsw_sp_mlxfw_dev, mlxfw_dev); |
| struct mlxsw_sp *mlxsw_sp = mlxsw_sp_mlxfw_dev->mlxsw_sp; |
| char mcc_pl[MLXSW_REG_MCC_LEN]; |
| |
| mlxsw_reg_mcc_pack(mcc_pl, |
| MLXSW_REG_MCC_INSTRUCTION_RELEASE_UPDATE_HANDLE, 0, |
| fwhandle, 0); |
| mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mcc), mcc_pl); |
| } |
| |
| static const struct mlxfw_dev_ops mlxsw_sp_mlxfw_dev_ops = { |
| .component_query = mlxsw_sp_component_query, |
| .fsm_lock = mlxsw_sp_fsm_lock, |
| .fsm_component_update = mlxsw_sp_fsm_component_update, |
| .fsm_block_download = mlxsw_sp_fsm_block_download, |
| .fsm_component_verify = mlxsw_sp_fsm_component_verify, |
| .fsm_activate = mlxsw_sp_fsm_activate, |
| .fsm_query_state = mlxsw_sp_fsm_query_state, |
| .fsm_cancel = mlxsw_sp_fsm_cancel, |
| .fsm_release = mlxsw_sp_fsm_release |
| }; |
| |
| static int mlxsw_sp_firmware_flash(struct mlxsw_sp *mlxsw_sp, |
| const struct firmware *firmware) |
| { |
| struct mlxsw_sp_mlxfw_dev mlxsw_sp_mlxfw_dev = { |
| .mlxfw_dev = { |
| .ops = &mlxsw_sp_mlxfw_dev_ops, |
| .psid = mlxsw_sp->bus_info->psid, |
| .psid_size = strlen(mlxsw_sp->bus_info->psid), |
| }, |
| .mlxsw_sp = mlxsw_sp |
| }; |
| |
| return mlxfw_firmware_flash(&mlxsw_sp_mlxfw_dev.mlxfw_dev, firmware); |
| } |
| |
| static int mlxsw_sp_fw_rev_validate(struct mlxsw_sp *mlxsw_sp) |
| { |
| const struct mlxsw_fw_rev *rev = &mlxsw_sp->bus_info->fw_rev; |
| const struct firmware *firmware; |
| int err; |
| |
| /* Validate driver & FW are compatible */ |
| if (rev->major != MLXSW_FWREV_MAJOR) { |
| WARN(1, "Mismatch in major FW version [%d:%d] is never expected; Please contact support\n", |
| rev->major, MLXSW_FWREV_MAJOR); |
| return -EINVAL; |
| } |
| if (MLXSW_FWREV_MINOR_TO_BRANCH(rev->minor) == |
| MLXSW_FWREV_MINOR_TO_BRANCH(MLXSW_FWREV_MINOR)) |
| return 0; |
| |
| dev_info(mlxsw_sp->bus_info->dev, "The firmware version %d.%d.%d is incompatible with the driver\n", |
| rev->major, rev->minor, rev->subminor); |
| dev_info(mlxsw_sp->bus_info->dev, "Flashing firmware using file %s\n", |
| MLXSW_SP_FW_FILENAME); |
| |
| err = request_firmware_direct(&firmware, MLXSW_SP_FW_FILENAME, |
| mlxsw_sp->bus_info->dev); |
| if (err) { |
| dev_err(mlxsw_sp->bus_info->dev, "Could not request firmware file %s\n", |
| MLXSW_SP_FW_FILENAME); |
| return err; |
| } |
| |
| err = mlxsw_sp_firmware_flash(mlxsw_sp, firmware); |
| release_firmware(firmware); |
| return err; |
| } |
| |
| int mlxsw_sp_flow_counter_get(struct mlxsw_sp *mlxsw_sp, |
| unsigned int counter_index, u64 *packets, |
| u64 *bytes) |
| { |
| char mgpc_pl[MLXSW_REG_MGPC_LEN]; |
| int err; |
| |
| mlxsw_reg_mgpc_pack(mgpc_pl, counter_index, MLXSW_REG_MGPC_OPCODE_NOP, |
| MLXSW_REG_FLOW_COUNTER_SET_TYPE_PACKETS_BYTES); |
| err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(mgpc), mgpc_pl); |
| if (err) |
| return err; |
| if (packets) |
| *packets = mlxsw_reg_mgpc_packet_counter_get(mgpc_pl); |
| if (bytes) |
| *bytes = mlxsw_reg_mgpc_byte_counter_get(mgpc_pl); |
| return 0; |
| } |
| |
| static int mlxsw_sp_flow_counter_clear(struct mlxsw_sp *mlxsw_sp, |
| unsigned int counter_index) |
| { |
| char mgpc_pl[MLXSW_REG_MGPC_LEN]; |
| |
| mlxsw_reg_mgpc_pack(mgpc_pl, counter_index, MLXSW_REG_MGPC_OPCODE_CLEAR, |
| MLXSW_REG_FLOW_COUNTER_SET_TYPE_PACKETS_BYTES); |
| return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mgpc), mgpc_pl); |
| } |
| |
| int mlxsw_sp_flow_counter_alloc(struct mlxsw_sp *mlxsw_sp, |
| unsigned int *p_counter_index) |
| { |
| int err; |
| |
| err = mlxsw_sp_counter_alloc(mlxsw_sp, MLXSW_SP_COUNTER_SUB_POOL_FLOW, |
| p_counter_index); |
| if (err) |
| return err; |
| err = mlxsw_sp_flow_counter_clear(mlxsw_sp, *p_counter_index); |
| if (err) |
| goto err_counter_clear; |
| return 0; |
| |
| err_counter_clear: |
| mlxsw_sp_counter_free(mlxsw_sp, MLXSW_SP_COUNTER_SUB_POOL_FLOW, |
| *p_counter_index); |
| return err; |
| } |
| |
| void mlxsw_sp_flow_counter_free(struct mlxsw_sp *mlxsw_sp, |
| unsigned int counter_index) |
| { |
| mlxsw_sp_counter_free(mlxsw_sp, MLXSW_SP_COUNTER_SUB_POOL_FLOW, |
| counter_index); |
| } |
| |
| static void mlxsw_sp_txhdr_construct(struct sk_buff *skb, |
| const struct mlxsw_tx_info *tx_info) |
| { |
| char *txhdr = skb_push(skb, MLXSW_TXHDR_LEN); |
| |
| memset(txhdr, 0, MLXSW_TXHDR_LEN); |
| |
| mlxsw_tx_hdr_version_set(txhdr, MLXSW_TXHDR_VERSION_1); |
| mlxsw_tx_hdr_ctl_set(txhdr, MLXSW_TXHDR_ETH_CTL); |
| mlxsw_tx_hdr_proto_set(txhdr, MLXSW_TXHDR_PROTO_ETH); |
| mlxsw_tx_hdr_swid_set(txhdr, 0); |
| mlxsw_tx_hdr_control_tclass_set(txhdr, 1); |
| mlxsw_tx_hdr_port_mid_set(txhdr, tx_info->local_port); |
| mlxsw_tx_hdr_type_set(txhdr, MLXSW_TXHDR_TYPE_CONTROL); |
| } |
| |
| enum mlxsw_reg_spms_state mlxsw_sp_stp_spms_state(u8 state) |
| { |
| switch (state) { |
| case BR_STATE_FORWARDING: |
| return MLXSW_REG_SPMS_STATE_FORWARDING; |
| case BR_STATE_LEARNING: |
| return MLXSW_REG_SPMS_STATE_LEARNING; |
| case BR_STATE_LISTENING: /* fall-through */ |
| case BR_STATE_DISABLED: /* fall-through */ |
| case BR_STATE_BLOCKING: |
| return MLXSW_REG_SPMS_STATE_DISCARDING; |
| default: |
| BUG(); |
| } |
| } |
| |
| int mlxsw_sp_port_vid_stp_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid, |
| u8 state) |
| { |
| enum mlxsw_reg_spms_state spms_state = mlxsw_sp_stp_spms_state(state); |
| struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| char *spms_pl; |
| int err; |
| |
| spms_pl = kmalloc(MLXSW_REG_SPMS_LEN, GFP_KERNEL); |
| if (!spms_pl) |
| return -ENOMEM; |
| mlxsw_reg_spms_pack(spms_pl, mlxsw_sp_port->local_port); |
| mlxsw_reg_spms_vid_pack(spms_pl, vid, spms_state); |
| |
| err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spms), spms_pl); |
| kfree(spms_pl); |
| return err; |
| } |
| |
| static int mlxsw_sp_base_mac_get(struct mlxsw_sp *mlxsw_sp) |
| { |
| char spad_pl[MLXSW_REG_SPAD_LEN] = {0}; |
| int err; |
| |
| err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(spad), spad_pl); |
| if (err) |
| return err; |
| mlxsw_reg_spad_base_mac_memcpy_from(spad_pl, mlxsw_sp->base_mac); |
| return 0; |
| } |
| |
| static int mlxsw_sp_port_sample_set(struct mlxsw_sp_port *mlxsw_sp_port, |
| bool enable, u32 rate) |
| { |
| struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| char mpsc_pl[MLXSW_REG_MPSC_LEN]; |
| |
| mlxsw_reg_mpsc_pack(mpsc_pl, mlxsw_sp_port->local_port, enable, rate); |
| return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mpsc), mpsc_pl); |
| } |
| |
| static int mlxsw_sp_port_admin_status_set(struct mlxsw_sp_port *mlxsw_sp_port, |
| bool is_up) |
| { |
| struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| char paos_pl[MLXSW_REG_PAOS_LEN]; |
| |
| mlxsw_reg_paos_pack(paos_pl, mlxsw_sp_port->local_port, |
| is_up ? MLXSW_PORT_ADMIN_STATUS_UP : |
| MLXSW_PORT_ADMIN_STATUS_DOWN); |
| return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(paos), paos_pl); |
| } |
| |
| static int mlxsw_sp_port_dev_addr_set(struct mlxsw_sp_port *mlxsw_sp_port, |
| unsigned char *addr) |
| { |
| struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| char ppad_pl[MLXSW_REG_PPAD_LEN]; |
| |
| mlxsw_reg_ppad_pack(ppad_pl, true, mlxsw_sp_port->local_port); |
| mlxsw_reg_ppad_mac_memcpy_to(ppad_pl, addr); |
| return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ppad), ppad_pl); |
| } |
| |
| static int mlxsw_sp_port_dev_addr_init(struct mlxsw_sp_port *mlxsw_sp_port) |
| { |
| struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| unsigned char *addr = mlxsw_sp_port->dev->dev_addr; |
| |
| ether_addr_copy(addr, mlxsw_sp->base_mac); |
| addr[ETH_ALEN - 1] += mlxsw_sp_port->local_port; |
| return mlxsw_sp_port_dev_addr_set(mlxsw_sp_port, addr); |
| } |
| |
| static int mlxsw_sp_port_mtu_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 mtu) |
| { |
| struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| char pmtu_pl[MLXSW_REG_PMTU_LEN]; |
| int max_mtu; |
| int err; |
| |
| mtu += MLXSW_TXHDR_LEN + ETH_HLEN; |
| mlxsw_reg_pmtu_pack(pmtu_pl, mlxsw_sp_port->local_port, 0); |
| err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(pmtu), pmtu_pl); |
| if (err) |
| return err; |
| max_mtu = mlxsw_reg_pmtu_max_mtu_get(pmtu_pl); |
| |
| if (mtu > max_mtu) |
| return -EINVAL; |
| |
| mlxsw_reg_pmtu_pack(pmtu_pl, mlxsw_sp_port->local_port, mtu); |
| return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pmtu), pmtu_pl); |
| } |
| |
| static int mlxsw_sp_port_swid_set(struct mlxsw_sp_port *mlxsw_sp_port, u8 swid) |
| { |
| struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| char pspa_pl[MLXSW_REG_PSPA_LEN]; |
| |
| mlxsw_reg_pspa_pack(pspa_pl, swid, mlxsw_sp_port->local_port); |
| return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pspa), pspa_pl); |
| } |
| |
| int mlxsw_sp_port_vp_mode_set(struct mlxsw_sp_port *mlxsw_sp_port, bool enable) |
| { |
| struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| char svpe_pl[MLXSW_REG_SVPE_LEN]; |
| |
| mlxsw_reg_svpe_pack(svpe_pl, mlxsw_sp_port->local_port, enable); |
| return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(svpe), svpe_pl); |
| } |
| |
| int mlxsw_sp_port_vid_learning_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid, |
| bool learn_enable) |
| { |
| struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| char *spvmlr_pl; |
| int err; |
| |
| spvmlr_pl = kmalloc(MLXSW_REG_SPVMLR_LEN, GFP_KERNEL); |
| if (!spvmlr_pl) |
| return -ENOMEM; |
| mlxsw_reg_spvmlr_pack(spvmlr_pl, mlxsw_sp_port->local_port, vid, vid, |
| learn_enable); |
| err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spvmlr), spvmlr_pl); |
| kfree(spvmlr_pl); |
| return err; |
| } |
| |
| static int __mlxsw_sp_port_pvid_set(struct mlxsw_sp_port *mlxsw_sp_port, |
| u16 vid) |
| { |
| struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| char spvid_pl[MLXSW_REG_SPVID_LEN]; |
| |
| mlxsw_reg_spvid_pack(spvid_pl, mlxsw_sp_port->local_port, vid); |
| return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spvid), spvid_pl); |
| } |
| |
| static int mlxsw_sp_port_allow_untagged_set(struct mlxsw_sp_port *mlxsw_sp_port, |
| bool allow) |
| { |
| struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| char spaft_pl[MLXSW_REG_SPAFT_LEN]; |
| |
| mlxsw_reg_spaft_pack(spaft_pl, mlxsw_sp_port->local_port, allow); |
| return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spaft), spaft_pl); |
| } |
| |
| int mlxsw_sp_port_pvid_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid) |
| { |
| int err; |
| |
| if (!vid) { |
| err = mlxsw_sp_port_allow_untagged_set(mlxsw_sp_port, false); |
| if (err) |
| return err; |
| } else { |
| err = __mlxsw_sp_port_pvid_set(mlxsw_sp_port, vid); |
| if (err) |
| return err; |
| err = mlxsw_sp_port_allow_untagged_set(mlxsw_sp_port, true); |
| if (err) |
| goto err_port_allow_untagged_set; |
| } |
| |
| mlxsw_sp_port->pvid = vid; |
| return 0; |
| |
| err_port_allow_untagged_set: |
| __mlxsw_sp_port_pvid_set(mlxsw_sp_port, mlxsw_sp_port->pvid); |
| return err; |
| } |
| |
| static int |
| mlxsw_sp_port_system_port_mapping_set(struct mlxsw_sp_port *mlxsw_sp_port) |
| { |
| struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| char sspr_pl[MLXSW_REG_SSPR_LEN]; |
| |
| mlxsw_reg_sspr_pack(sspr_pl, mlxsw_sp_port->local_port); |
| return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sspr), sspr_pl); |
| } |
| |
| static int mlxsw_sp_port_module_info_get(struct mlxsw_sp *mlxsw_sp, |
| u8 local_port, u8 *p_module, |
| u8 *p_width, u8 *p_lane) |
| { |
| char pmlp_pl[MLXSW_REG_PMLP_LEN]; |
| int err; |
| |
| mlxsw_reg_pmlp_pack(pmlp_pl, local_port); |
| err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(pmlp), pmlp_pl); |
| if (err) |
| return err; |
| *p_module = mlxsw_reg_pmlp_module_get(pmlp_pl, 0); |
| *p_width = mlxsw_reg_pmlp_width_get(pmlp_pl); |
| *p_lane = mlxsw_reg_pmlp_tx_lane_get(pmlp_pl, 0); |
| return 0; |
| } |
| |
| static int mlxsw_sp_port_module_map(struct mlxsw_sp_port *mlxsw_sp_port, |
| u8 module, u8 width, u8 lane) |
| { |
| struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| char pmlp_pl[MLXSW_REG_PMLP_LEN]; |
| int i; |
| |
| mlxsw_reg_pmlp_pack(pmlp_pl, mlxsw_sp_port->local_port); |
| mlxsw_reg_pmlp_width_set(pmlp_pl, width); |
| for (i = 0; i < width; i++) { |
| mlxsw_reg_pmlp_module_set(pmlp_pl, i, module); |
| mlxsw_reg_pmlp_tx_lane_set(pmlp_pl, i, lane + i); /* Rx & Tx */ |
| } |
| |
| return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pmlp), pmlp_pl); |
| } |
| |
| static int mlxsw_sp_port_module_unmap(struct mlxsw_sp_port *mlxsw_sp_port) |
| { |
| struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| char pmlp_pl[MLXSW_REG_PMLP_LEN]; |
| |
| mlxsw_reg_pmlp_pack(pmlp_pl, mlxsw_sp_port->local_port); |
| mlxsw_reg_pmlp_width_set(pmlp_pl, 0); |
| return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pmlp), pmlp_pl); |
| } |
| |
| static int mlxsw_sp_port_open(struct net_device *dev) |
| { |
| struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); |
| int err; |
| |
| err = mlxsw_sp_port_admin_status_set(mlxsw_sp_port, true); |
| if (err) |
| return err; |
| netif_start_queue(dev); |
| return 0; |
| } |
| |
| static int mlxsw_sp_port_stop(struct net_device *dev) |
| { |
| struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); |
| |
| netif_stop_queue(dev); |
| return mlxsw_sp_port_admin_status_set(mlxsw_sp_port, false); |
| } |
| |
| static netdev_tx_t mlxsw_sp_port_xmit(struct sk_buff *skb, |
| struct net_device *dev) |
| { |
| struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); |
| struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| struct mlxsw_sp_port_pcpu_stats *pcpu_stats; |
| const struct mlxsw_tx_info tx_info = { |
| .local_port = mlxsw_sp_port->local_port, |
| .is_emad = false, |
| }; |
| u64 len; |
| int err; |
| |
| if (mlxsw_core_skb_transmit_busy(mlxsw_sp->core, &tx_info)) |
| return NETDEV_TX_BUSY; |
| |
| if (unlikely(skb_headroom(skb) < MLXSW_TXHDR_LEN)) { |
| struct sk_buff *skb_orig = skb; |
| |
| skb = skb_realloc_headroom(skb, MLXSW_TXHDR_LEN); |
| if (!skb) { |
| this_cpu_inc(mlxsw_sp_port->pcpu_stats->tx_dropped); |
| dev_kfree_skb_any(skb_orig); |
| return NETDEV_TX_OK; |
| } |
| dev_consume_skb_any(skb_orig); |
| } |
| |
| if (eth_skb_pad(skb)) { |
| this_cpu_inc(mlxsw_sp_port->pcpu_stats->tx_dropped); |
| return NETDEV_TX_OK; |
| } |
| |
| mlxsw_sp_txhdr_construct(skb, &tx_info); |
| /* TX header is consumed by HW on the way so we shouldn't count its |
| * bytes as being sent. |
| */ |
| len = skb->len - MLXSW_TXHDR_LEN; |
| |
| /* Due to a race we might fail here because of a full queue. In that |
| * unlikely case we simply drop the packet. |
| */ |
| err = mlxsw_core_skb_transmit(mlxsw_sp->core, skb, &tx_info); |
| |
| if (!err) { |
| pcpu_stats = this_cpu_ptr(mlxsw_sp_port->pcpu_stats); |
| u64_stats_update_begin(&pcpu_stats->syncp); |
| pcpu_stats->tx_packets++; |
| pcpu_stats->tx_bytes += len; |
| u64_stats_update_end(&pcpu_stats->syncp); |
| } else { |
| this_cpu_inc(mlxsw_sp_port->pcpu_stats->tx_dropped); |
| dev_kfree_skb_any(skb); |
| } |
| return NETDEV_TX_OK; |
| } |
| |
| static void mlxsw_sp_set_rx_mode(struct net_device *dev) |
| { |
| } |
| |
| static int mlxsw_sp_port_set_mac_address(struct net_device *dev, void *p) |
| { |
| struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); |
| struct sockaddr *addr = p; |
| int err; |
| |
| if (!is_valid_ether_addr(addr->sa_data)) |
| return -EADDRNOTAVAIL; |
| |
| err = mlxsw_sp_port_dev_addr_set(mlxsw_sp_port, addr->sa_data); |
| if (err) |
| return err; |
| memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); |
| return 0; |
| } |
| |
| static u16 mlxsw_sp_pg_buf_threshold_get(const struct mlxsw_sp *mlxsw_sp, |
| int mtu) |
| { |
| return 2 * mlxsw_sp_bytes_cells(mlxsw_sp, mtu); |
| } |
| |
| #define MLXSW_SP_CELL_FACTOR 2 /* 2 * cell_size / (IPG + cell_size + 1) */ |
| |
| static u16 mlxsw_sp_pfc_delay_get(const struct mlxsw_sp *mlxsw_sp, int mtu, |
| u16 delay) |
| { |
| delay = mlxsw_sp_bytes_cells(mlxsw_sp, DIV_ROUND_UP(delay, |
| BITS_PER_BYTE)); |
| return MLXSW_SP_CELL_FACTOR * delay + mlxsw_sp_bytes_cells(mlxsw_sp, |
| mtu); |
| } |
| |
| /* Maximum delay buffer needed in case of PAUSE frames, in bytes. |
| * Assumes 100m cable and maximum MTU. |
| */ |
| #define MLXSW_SP_PAUSE_DELAY 58752 |
| |
| static u16 mlxsw_sp_pg_buf_delay_get(const struct mlxsw_sp *mlxsw_sp, int mtu, |
| u16 delay, bool pfc, bool pause) |
| { |
| if (pfc) |
| return mlxsw_sp_pfc_delay_get(mlxsw_sp, mtu, delay); |
| else if (pause) |
| return mlxsw_sp_bytes_cells(mlxsw_sp, MLXSW_SP_PAUSE_DELAY); |
| else |
| return 0; |
| } |
| |
| static void mlxsw_sp_pg_buf_pack(char *pbmc_pl, int index, u16 size, u16 thres, |
| bool lossy) |
| { |
| if (lossy) |
| mlxsw_reg_pbmc_lossy_buffer_pack(pbmc_pl, index, size); |
| else |
| mlxsw_reg_pbmc_lossless_buffer_pack(pbmc_pl, index, size, |
| thres); |
| } |
| |
| int __mlxsw_sp_port_headroom_set(struct mlxsw_sp_port *mlxsw_sp_port, int mtu, |
| u8 *prio_tc, bool pause_en, |
| struct ieee_pfc *my_pfc) |
| { |
| struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| u8 pfc_en = !!my_pfc ? my_pfc->pfc_en : 0; |
| u16 delay = !!my_pfc ? my_pfc->delay : 0; |
| char pbmc_pl[MLXSW_REG_PBMC_LEN]; |
| int i, j, err; |
| |
| mlxsw_reg_pbmc_pack(pbmc_pl, mlxsw_sp_port->local_port, 0, 0); |
| err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(pbmc), pbmc_pl); |
| if (err) |
| return err; |
| |
| for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) { |
| bool configure = false; |
| bool pfc = false; |
| bool lossy; |
| u16 thres; |
| |
| for (j = 0; j < IEEE_8021QAZ_MAX_TCS; j++) { |
| if (prio_tc[j] == i) { |
| pfc = pfc_en & BIT(j); |
| configure = true; |
| break; |
| } |
| } |
| |
| if (!configure) |
| continue; |
| |
| lossy = !(pfc || pause_en); |
| thres = mlxsw_sp_pg_buf_threshold_get(mlxsw_sp, mtu); |
| delay = mlxsw_sp_pg_buf_delay_get(mlxsw_sp, mtu, delay, pfc, |
| pause_en); |
| mlxsw_sp_pg_buf_pack(pbmc_pl, i, thres + delay, thres, lossy); |
| } |
| |
| return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pbmc), pbmc_pl); |
| } |
| |
| static int mlxsw_sp_port_headroom_set(struct mlxsw_sp_port *mlxsw_sp_port, |
| int mtu, bool pause_en) |
| { |
| u8 def_prio_tc[IEEE_8021QAZ_MAX_TCS] = {0}; |
| bool dcb_en = !!mlxsw_sp_port->dcb.ets; |
| struct ieee_pfc *my_pfc; |
| u8 *prio_tc; |
| |
| prio_tc = dcb_en ? mlxsw_sp_port->dcb.ets->prio_tc : def_prio_tc; |
| my_pfc = dcb_en ? mlxsw_sp_port->dcb.pfc : NULL; |
| |
| return __mlxsw_sp_port_headroom_set(mlxsw_sp_port, mtu, prio_tc, |
| pause_en, my_pfc); |
| } |
| |
| static int mlxsw_sp_port_change_mtu(struct net_device *dev, int mtu) |
| { |
| struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); |
| bool pause_en = mlxsw_sp_port_is_pause_en(mlxsw_sp_port); |
| int err; |
| |
| err = mlxsw_sp_port_headroom_set(mlxsw_sp_port, mtu, pause_en); |
| if (err) |
| return err; |
| err = mlxsw_sp_span_port_mtu_update(mlxsw_sp_port, mtu); |
| if (err) |
| goto err_span_port_mtu_update; |
| err = mlxsw_sp_port_mtu_set(mlxsw_sp_port, mtu); |
| if (err) |
| goto err_port_mtu_set; |
| dev->mtu = mtu; |
| return 0; |
| |
| err_port_mtu_set: |
| mlxsw_sp_span_port_mtu_update(mlxsw_sp_port, dev->mtu); |
| err_span_port_mtu_update: |
| mlxsw_sp_port_headroom_set(mlxsw_sp_port, dev->mtu, pause_en); |
| return err; |
| } |
| |
| static int |
| mlxsw_sp_port_get_sw_stats64(const struct net_device *dev, |
| struct rtnl_link_stats64 *stats) |
| { |
| struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); |
| struct mlxsw_sp_port_pcpu_stats *p; |
| u64 rx_packets, rx_bytes, tx_packets, tx_bytes; |
| u32 tx_dropped = 0; |
| unsigned int start; |
| int i; |
| |
| for_each_possible_cpu(i) { |
| p = per_cpu_ptr(mlxsw_sp_port->pcpu_stats, i); |
| do { |
| start = u64_stats_fetch_begin_irq(&p->syncp); |
| rx_packets = p->rx_packets; |
| rx_bytes = p->rx_bytes; |
| tx_packets = p->tx_packets; |
| tx_bytes = p->tx_bytes; |
| } while (u64_stats_fetch_retry_irq(&p->syncp, start)); |
| |
| stats->rx_packets += rx_packets; |
| stats->rx_bytes += rx_bytes; |
| stats->tx_packets += tx_packets; |
| stats->tx_bytes += tx_bytes; |
| /* tx_dropped is u32, updated without syncp protection. */ |
| tx_dropped += p->tx_dropped; |
| } |
| stats->tx_dropped = tx_dropped; |
| return 0; |
| } |
| |
| static bool mlxsw_sp_port_has_offload_stats(const struct net_device *dev, int attr_id) |
| { |
| switch (attr_id) { |
| case IFLA_OFFLOAD_XSTATS_CPU_HIT: |
| return true; |
| } |
| |
| return false; |
| } |
| |
| static int mlxsw_sp_port_get_offload_stats(int attr_id, const struct net_device *dev, |
| void *sp) |
| { |
| switch (attr_id) { |
| case IFLA_OFFLOAD_XSTATS_CPU_HIT: |
| return mlxsw_sp_port_get_sw_stats64(dev, sp); |
| } |
| |
| return -EINVAL; |
| } |
| |
| static int mlxsw_sp_port_get_stats_raw(struct net_device *dev, int grp, |
| int prio, char *ppcnt_pl) |
| { |
| struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); |
| struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| |
| mlxsw_reg_ppcnt_pack(ppcnt_pl, mlxsw_sp_port->local_port, grp, prio); |
| return mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ppcnt), ppcnt_pl); |
| } |
| |
| static int mlxsw_sp_port_get_hw_stats(struct net_device *dev, |
| struct rtnl_link_stats64 *stats) |
| { |
| char ppcnt_pl[MLXSW_REG_PPCNT_LEN]; |
| int err; |
| |
| err = mlxsw_sp_port_get_stats_raw(dev, MLXSW_REG_PPCNT_IEEE_8023_CNT, |
| 0, ppcnt_pl); |
| if (err) |
| goto out; |
| |
| stats->tx_packets = |
| mlxsw_reg_ppcnt_a_frames_transmitted_ok_get(ppcnt_pl); |
| stats->rx_packets = |
| mlxsw_reg_ppcnt_a_frames_received_ok_get(ppcnt_pl); |
| stats->tx_bytes = |
| mlxsw_reg_ppcnt_a_octets_transmitted_ok_get(ppcnt_pl); |
| stats->rx_bytes = |
| mlxsw_reg_ppcnt_a_octets_received_ok_get(ppcnt_pl); |
| stats->multicast = |
| mlxsw_reg_ppcnt_a_multicast_frames_received_ok_get(ppcnt_pl); |
| |
| stats->rx_crc_errors = |
| mlxsw_reg_ppcnt_a_frame_check_sequence_errors_get(ppcnt_pl); |
| stats->rx_frame_errors = |
| mlxsw_reg_ppcnt_a_alignment_errors_get(ppcnt_pl); |
| |
| stats->rx_length_errors = ( |
| mlxsw_reg_ppcnt_a_in_range_length_errors_get(ppcnt_pl) + |
| mlxsw_reg_ppcnt_a_out_of_range_length_field_get(ppcnt_pl) + |
| mlxsw_reg_ppcnt_a_frame_too_long_errors_get(ppcnt_pl)); |
| |
| stats->rx_errors = (stats->rx_crc_errors + |
| stats->rx_frame_errors + stats->rx_length_errors); |
| |
| out: |
| return err; |
| } |
| |
| static void |
| mlxsw_sp_port_get_hw_xstats(struct net_device *dev, |
| struct mlxsw_sp_port_xstats *xstats) |
| { |
| char ppcnt_pl[MLXSW_REG_PPCNT_LEN]; |
| int err, i; |
| |
| err = mlxsw_sp_port_get_stats_raw(dev, MLXSW_REG_PPCNT_EXT_CNT, 0, |
| ppcnt_pl); |
| if (!err) |
| xstats->ecn = mlxsw_reg_ppcnt_ecn_marked_get(ppcnt_pl); |
| |
| for (i = 0; i < TC_MAX_QUEUE; i++) { |
| err = mlxsw_sp_port_get_stats_raw(dev, |
| MLXSW_REG_PPCNT_TC_CONG_TC, |
| i, ppcnt_pl); |
| if (!err) |
| xstats->wred_drop[i] = |
| mlxsw_reg_ppcnt_wred_discard_get(ppcnt_pl); |
| |
| err = mlxsw_sp_port_get_stats_raw(dev, MLXSW_REG_PPCNT_TC_CNT, |
| i, ppcnt_pl); |
| if (err) |
| continue; |
| |
| xstats->backlog[i] = |
| mlxsw_reg_ppcnt_tc_transmit_queue_get(ppcnt_pl); |
| xstats->tail_drop[i] = |
| mlxsw_reg_ppcnt_tc_no_buffer_discard_uc_get(ppcnt_pl); |
| } |
| |
| for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) { |
| err = mlxsw_sp_port_get_stats_raw(dev, MLXSW_REG_PPCNT_PRIO_CNT, |
| i, ppcnt_pl); |
| if (err) |
| continue; |
| |
| xstats->tx_packets[i] = mlxsw_reg_ppcnt_tx_frames_get(ppcnt_pl); |
| xstats->tx_bytes[i] = mlxsw_reg_ppcnt_tx_octets_get(ppcnt_pl); |
| } |
| } |
| |
| static void update_stats_cache(struct work_struct *work) |
| { |
| struct mlxsw_sp_port *mlxsw_sp_port = |
| container_of(work, struct mlxsw_sp_port, |
| periodic_hw_stats.update_dw.work); |
| |
| if (!netif_carrier_ok(mlxsw_sp_port->dev)) |
| goto out; |
| |
| mlxsw_sp_port_get_hw_stats(mlxsw_sp_port->dev, |
| &mlxsw_sp_port->periodic_hw_stats.stats); |
| mlxsw_sp_port_get_hw_xstats(mlxsw_sp_port->dev, |
| &mlxsw_sp_port->periodic_hw_stats.xstats); |
| |
| out: |
| mlxsw_core_schedule_dw(&mlxsw_sp_port->periodic_hw_stats.update_dw, |
| MLXSW_HW_STATS_UPDATE_TIME); |
| } |
| |
| /* Return the stats from a cache that is updated periodically, |
| * as this function might get called in an atomic context. |
| */ |
| static void |
| mlxsw_sp_port_get_stats64(struct net_device *dev, |
| struct rtnl_link_stats64 *stats) |
| { |
| struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); |
| |
| memcpy(stats, &mlxsw_sp_port->periodic_hw_stats.stats, sizeof(*stats)); |
| } |
| |
| static int __mlxsw_sp_port_vlan_set(struct mlxsw_sp_port *mlxsw_sp_port, |
| u16 vid_begin, u16 vid_end, |
| bool is_member, bool untagged) |
| { |
| struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| char *spvm_pl; |
| int err; |
| |
| spvm_pl = kmalloc(MLXSW_REG_SPVM_LEN, GFP_KERNEL); |
| if (!spvm_pl) |
| return -ENOMEM; |
| |
| mlxsw_reg_spvm_pack(spvm_pl, mlxsw_sp_port->local_port, vid_begin, |
| vid_end, is_member, untagged); |
| err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spvm), spvm_pl); |
| kfree(spvm_pl); |
| return err; |
| } |
| |
| int mlxsw_sp_port_vlan_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid_begin, |
| u16 vid_end, bool is_member, bool untagged) |
| { |
| u16 vid, vid_e; |
| int err; |
| |
| for (vid = vid_begin; vid <= vid_end; |
| vid += MLXSW_REG_SPVM_REC_MAX_COUNT) { |
| vid_e = min((u16) (vid + MLXSW_REG_SPVM_REC_MAX_COUNT - 1), |
| vid_end); |
| |
| err = __mlxsw_sp_port_vlan_set(mlxsw_sp_port, vid, vid_e, |
| is_member, untagged); |
| if (err) |
| return err; |
| } |
| |
| return 0; |
| } |
| |
| static void mlxsw_sp_port_vlan_flush(struct mlxsw_sp_port *mlxsw_sp_port) |
| { |
| struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan, *tmp; |
| |
| list_for_each_entry_safe(mlxsw_sp_port_vlan, tmp, |
| &mlxsw_sp_port->vlans_list, list) |
| mlxsw_sp_port_vlan_put(mlxsw_sp_port_vlan); |
| } |
| |
| static struct mlxsw_sp_port_vlan * |
| mlxsw_sp_port_vlan_create(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid) |
| { |
| struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan; |
| bool untagged = vid == 1; |
| int err; |
| |
| err = mlxsw_sp_port_vlan_set(mlxsw_sp_port, vid, vid, true, untagged); |
| if (err) |
| return ERR_PTR(err); |
| |
| mlxsw_sp_port_vlan = kzalloc(sizeof(*mlxsw_sp_port_vlan), GFP_KERNEL); |
| if (!mlxsw_sp_port_vlan) { |
| err = -ENOMEM; |
| goto err_port_vlan_alloc; |
| } |
| |
| mlxsw_sp_port_vlan->mlxsw_sp_port = mlxsw_sp_port; |
| mlxsw_sp_port_vlan->ref_count = 1; |
| mlxsw_sp_port_vlan->vid = vid; |
| list_add(&mlxsw_sp_port_vlan->list, &mlxsw_sp_port->vlans_list); |
| |
| return mlxsw_sp_port_vlan; |
| |
| err_port_vlan_alloc: |
| mlxsw_sp_port_vlan_set(mlxsw_sp_port, vid, vid, false, false); |
| return ERR_PTR(err); |
| } |
| |
| static void |
| mlxsw_sp_port_vlan_destroy(struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan) |
| { |
| struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp_port_vlan->mlxsw_sp_port; |
| u16 vid = mlxsw_sp_port_vlan->vid; |
| |
| list_del(&mlxsw_sp_port_vlan->list); |
| kfree(mlxsw_sp_port_vlan); |
| mlxsw_sp_port_vlan_set(mlxsw_sp_port, vid, vid, false, false); |
| } |
| |
| struct mlxsw_sp_port_vlan * |
| mlxsw_sp_port_vlan_get(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid) |
| { |
| struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan; |
| |
| mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_vid(mlxsw_sp_port, vid); |
| if (mlxsw_sp_port_vlan) { |
| mlxsw_sp_port_vlan->ref_count++; |
| return mlxsw_sp_port_vlan; |
| } |
| |
| return mlxsw_sp_port_vlan_create(mlxsw_sp_port, vid); |
| } |
| |
| void mlxsw_sp_port_vlan_put(struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan) |
| { |
| struct mlxsw_sp_fid *fid = mlxsw_sp_port_vlan->fid; |
| |
| if (--mlxsw_sp_port_vlan->ref_count != 0) |
| return; |
| |
| if (mlxsw_sp_port_vlan->bridge_port) |
| mlxsw_sp_port_vlan_bridge_leave(mlxsw_sp_port_vlan); |
| else if (fid) |
| mlxsw_sp_port_vlan_router_leave(mlxsw_sp_port_vlan); |
| |
| mlxsw_sp_port_vlan_destroy(mlxsw_sp_port_vlan); |
| } |
| |
| static int mlxsw_sp_port_add_vid(struct net_device *dev, |
| __be16 __always_unused proto, u16 vid) |
| { |
| struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); |
| |
| /* VLAN 0 is added to HW filter when device goes up, but it is |
| * reserved in our case, so simply return. |
| */ |
| if (!vid) |
| return 0; |
| |
| return PTR_ERR_OR_ZERO(mlxsw_sp_port_vlan_get(mlxsw_sp_port, vid)); |
| } |
| |
| static int mlxsw_sp_port_kill_vid(struct net_device *dev, |
| __be16 __always_unused proto, u16 vid) |
| { |
| struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); |
| struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan; |
| |
| /* VLAN 0 is removed from HW filter when device goes down, but |
| * it is reserved in our case, so simply return. |
| */ |
| if (!vid) |
| return 0; |
| |
| mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_vid(mlxsw_sp_port, vid); |
| if (!mlxsw_sp_port_vlan) |
| return 0; |
| mlxsw_sp_port_vlan_put(mlxsw_sp_port_vlan); |
| |
| return 0; |
| } |
| |
| static int mlxsw_sp_port_get_phys_port_name(struct net_device *dev, char *name, |
| size_t len) |
| { |
| struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); |
| |
| return mlxsw_core_port_get_phys_port_name(mlxsw_sp_port->mlxsw_sp->core, |
| mlxsw_sp_port->local_port, |
| name, len); |
| } |
| |
| static struct mlxsw_sp_port_mall_tc_entry * |
| mlxsw_sp_port_mall_tc_entry_find(struct mlxsw_sp_port *port, |
| unsigned long cookie) { |
| struct mlxsw_sp_port_mall_tc_entry *mall_tc_entry; |
| |
| list_for_each_entry(mall_tc_entry, &port->mall_tc_list, list) |
| if (mall_tc_entry->cookie == cookie) |
| return mall_tc_entry; |
| |
| return NULL; |
| } |
| |
| static int |
| mlxsw_sp_port_add_cls_matchall_mirror(struct mlxsw_sp_port *mlxsw_sp_port, |
| struct mlxsw_sp_port_mall_mirror_tc_entry *mirror, |
| const struct tc_action *a, |
| bool ingress) |
| { |
| enum mlxsw_sp_span_type span_type; |
| struct net_device *to_dev; |
| |
| to_dev = tcf_mirred_dev(a); |
| if (!to_dev) { |
| netdev_err(mlxsw_sp_port->dev, "Could not find requested device\n"); |
| return -EINVAL; |
| } |
| |
| mirror->ingress = ingress; |
| span_type = ingress ? MLXSW_SP_SPAN_INGRESS : MLXSW_SP_SPAN_EGRESS; |
| return mlxsw_sp_span_mirror_add(mlxsw_sp_port, to_dev, span_type, |
| true, &mirror->span_id); |
| } |
| |
| static void |
| mlxsw_sp_port_del_cls_matchall_mirror(struct mlxsw_sp_port *mlxsw_sp_port, |
| struct mlxsw_sp_port_mall_mirror_tc_entry *mirror) |
| { |
| enum mlxsw_sp_span_type span_type; |
| |
| span_type = mirror->ingress ? |
| MLXSW_SP_SPAN_INGRESS : MLXSW_SP_SPAN_EGRESS; |
| mlxsw_sp_span_mirror_del(mlxsw_sp_port, mirror->span_id, |
| span_type, true); |
| } |
| |
| static int |
| mlxsw_sp_port_add_cls_matchall_sample(struct mlxsw_sp_port *mlxsw_sp_port, |
| struct tc_cls_matchall_offload *cls, |
| const struct tc_action *a, |
| bool ingress) |
| { |
| int err; |
| |
| if (!mlxsw_sp_port->sample) |
| return -EOPNOTSUPP; |
| if (rtnl_dereference(mlxsw_sp_port->sample->psample_group)) { |
| netdev_err(mlxsw_sp_port->dev, "sample already active\n"); |
| return -EEXIST; |
| } |
| if (tcf_sample_rate(a) > MLXSW_REG_MPSC_RATE_MAX) { |
| netdev_err(mlxsw_sp_port->dev, "sample rate not supported\n"); |
| return -EOPNOTSUPP; |
| } |
| |
| rcu_assign_pointer(mlxsw_sp_port->sample->psample_group, |
| tcf_sample_psample_group(a)); |
| mlxsw_sp_port->sample->truncate = tcf_sample_truncate(a); |
| mlxsw_sp_port->sample->trunc_size = tcf_sample_trunc_size(a); |
| mlxsw_sp_port->sample->rate = tcf_sample_rate(a); |
| |
| err = mlxsw_sp_port_sample_set(mlxsw_sp_port, true, tcf_sample_rate(a)); |
| if (err) |
| goto err_port_sample_set; |
| return 0; |
| |
| err_port_sample_set: |
| RCU_INIT_POINTER(mlxsw_sp_port->sample->psample_group, NULL); |
| return err; |
| } |
| |
| static void |
| mlxsw_sp_port_del_cls_matchall_sample(struct mlxsw_sp_port *mlxsw_sp_port) |
| { |
| if (!mlxsw_sp_port->sample) |
| return; |
| |
| mlxsw_sp_port_sample_set(mlxsw_sp_port, false, 1); |
| RCU_INIT_POINTER(mlxsw_sp_port->sample->psample_group, NULL); |
| } |
| |
| static int mlxsw_sp_port_add_cls_matchall(struct mlxsw_sp_port *mlxsw_sp_port, |
| struct tc_cls_matchall_offload *f, |
| bool ingress) |
| { |
| struct mlxsw_sp_port_mall_tc_entry *mall_tc_entry; |
| __be16 protocol = f->common.protocol; |
| const struct tc_action *a; |
| LIST_HEAD(actions); |
| int err; |
| |
| if (!tcf_exts_has_one_action(f->exts)) { |
| netdev_err(mlxsw_sp_port->dev, "only singular actions are supported\n"); |
| return -EOPNOTSUPP; |
| } |
| |
| mall_tc_entry = kzalloc(sizeof(*mall_tc_entry), GFP_KERNEL); |
| if (!mall_tc_entry) |
| return -ENOMEM; |
| mall_tc_entry->cookie = f->cookie; |
| |
| tcf_exts_to_list(f->exts, &actions); |
| a = list_first_entry(&actions, struct tc_action, list); |
| |
| if (is_tcf_mirred_egress_mirror(a) && protocol == htons(ETH_P_ALL)) { |
| struct mlxsw_sp_port_mall_mirror_tc_entry *mirror; |
| |
| mall_tc_entry->type = MLXSW_SP_PORT_MALL_MIRROR; |
| mirror = &mall_tc_entry->mirror; |
| err = mlxsw_sp_port_add_cls_matchall_mirror(mlxsw_sp_port, |
| mirror, a, ingress); |
| } else if (is_tcf_sample(a) && protocol == htons(ETH_P_ALL)) { |
| mall_tc_entry->type = MLXSW_SP_PORT_MALL_SAMPLE; |
| err = mlxsw_sp_port_add_cls_matchall_sample(mlxsw_sp_port, f, |
| a, ingress); |
| } else { |
| err = -EOPNOTSUPP; |
| } |
| |
| if (err) |
| goto err_add_action; |
| |
| list_add_tail(&mall_tc_entry->list, &mlxsw_sp_port->mall_tc_list); |
| return 0; |
| |
| err_add_action: |
| kfree(mall_tc_entry); |
| return err; |
| } |
| |
| static void mlxsw_sp_port_del_cls_matchall(struct mlxsw_sp_port *mlxsw_sp_port, |
| struct tc_cls_matchall_offload *f) |
| { |
| struct mlxsw_sp_port_mall_tc_entry *mall_tc_entry; |
| |
| mall_tc_entry = mlxsw_sp_port_mall_tc_entry_find(mlxsw_sp_port, |
| f->cookie); |
| if (!mall_tc_entry) { |
| netdev_dbg(mlxsw_sp_port->dev, "tc entry not found on port\n"); |
| return; |
| } |
| list_del(&mall_tc_entry->list); |
| |
| switch (mall_tc_entry->type) { |
| case MLXSW_SP_PORT_MALL_MIRROR: |
| mlxsw_sp_port_del_cls_matchall_mirror(mlxsw_sp_port, |
| &mall_tc_entry->mirror); |
| break; |
| case MLXSW_SP_PORT_MALL_SAMPLE: |
| mlxsw_sp_port_del_cls_matchall_sample(mlxsw_sp_port); |
| break; |
| default: |
| WARN_ON(1); |
| } |
| |
| kfree(mall_tc_entry); |
| } |
| |
| static int mlxsw_sp_setup_tc_cls_matchall(struct mlxsw_sp_port *mlxsw_sp_port, |
| struct tc_cls_matchall_offload *f, |
| bool ingress) |
| { |
| switch (f->command) { |
| case TC_CLSMATCHALL_REPLACE: |
| return mlxsw_sp_port_add_cls_matchall(mlxsw_sp_port, f, |
| ingress); |
| case TC_CLSMATCHALL_DESTROY: |
| mlxsw_sp_port_del_cls_matchall(mlxsw_sp_port, f); |
| return 0; |
| default: |
| return -EOPNOTSUPP; |
| } |
| } |
| |
| static int |
| mlxsw_sp_setup_tc_cls_flower(struct mlxsw_sp_acl_block *acl_block, |
| struct tc_cls_flower_offload *f) |
| { |
| struct mlxsw_sp *mlxsw_sp = mlxsw_sp_acl_block_mlxsw_sp(acl_block); |
| |
| switch (f->command) { |
| case TC_CLSFLOWER_REPLACE: |
| return mlxsw_sp_flower_replace(mlxsw_sp, acl_block, f); |
| case TC_CLSFLOWER_DESTROY: |
| mlxsw_sp_flower_destroy(mlxsw_sp, acl_block, f); |
| return 0; |
| case TC_CLSFLOWER_STATS: |
| return mlxsw_sp_flower_stats(mlxsw_sp, acl_block, f); |
| default: |
| return -EOPNOTSUPP; |
| } |
| } |
| |
| static int mlxsw_sp_setup_tc_block_cb_matchall(enum tc_setup_type type, |
| void *type_data, |
| void *cb_priv, bool ingress) |
| { |
| struct mlxsw_sp_port *mlxsw_sp_port = cb_priv; |
| |
| switch (type) { |
| case TC_SETUP_CLSMATCHALL: |
| if (!tc_cls_can_offload_and_chain0(mlxsw_sp_port->dev, |
| type_data)) |
| return -EOPNOTSUPP; |
| |
| return mlxsw_sp_setup_tc_cls_matchall(mlxsw_sp_port, type_data, |
| ingress); |
| case TC_SETUP_CLSFLOWER: |
| return 0; |
| default: |
| return -EOPNOTSUPP; |
| } |
| } |
| |
| static int mlxsw_sp_setup_tc_block_cb_matchall_ig(enum tc_setup_type type, |
| void *type_data, |
| void *cb_priv) |
| { |
| return mlxsw_sp_setup_tc_block_cb_matchall(type, type_data, |
| cb_priv, true); |
| } |
| |
| static int mlxsw_sp_setup_tc_block_cb_matchall_eg(enum tc_setup_type type, |
| void *type_data, |
| void *cb_priv) |
| { |
| return mlxsw_sp_setup_tc_block_cb_matchall(type, type_data, |
| cb_priv, false); |
| } |
| |
| static int mlxsw_sp_setup_tc_block_cb_flower(enum tc_setup_type type, |
| void *type_data, void *cb_priv) |
| { |
| struct mlxsw_sp_acl_block *acl_block = cb_priv; |
| |
| switch (type) { |
| case TC_SETUP_CLSMATCHALL: |
| return 0; |
| case TC_SETUP_CLSFLOWER: |
| if (mlxsw_sp_acl_block_disabled(acl_block)) |
| return -EOPNOTSUPP; |
| |
| return mlxsw_sp_setup_tc_cls_flower(acl_block, type_data); |
| default: |
| return -EOPNOTSUPP; |
| } |
| } |
| |
| static int |
| mlxsw_sp_setup_tc_block_flower_bind(struct mlxsw_sp_port *mlxsw_sp_port, |
| struct tcf_block *block, bool ingress) |
| { |
| struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| struct mlxsw_sp_acl_block *acl_block; |
| struct tcf_block_cb *block_cb; |
| int err; |
| |
| block_cb = tcf_block_cb_lookup(block, mlxsw_sp_setup_tc_block_cb_flower, |
| mlxsw_sp); |
| if (!block_cb) { |
| acl_block = mlxsw_sp_acl_block_create(mlxsw_sp, block->net); |
| if (!acl_block) |
| return -ENOMEM; |
| block_cb = __tcf_block_cb_register(block, |
| mlxsw_sp_setup_tc_block_cb_flower, |
| mlxsw_sp, acl_block); |
| if (IS_ERR(block_cb)) { |
| err = PTR_ERR(block_cb); |
| goto err_cb_register; |
| } |
| } else { |
| acl_block = tcf_block_cb_priv(block_cb); |
| } |
| tcf_block_cb_incref(block_cb); |
| err = mlxsw_sp_acl_block_bind(mlxsw_sp, acl_block, |
| mlxsw_sp_port, ingress); |
| if (err) |
| goto err_block_bind; |
| |
| if (ingress) |
| mlxsw_sp_port->ing_acl_block = acl_block; |
| else |
| mlxsw_sp_port->eg_acl_block = acl_block; |
| |
| return 0; |
| |
| err_block_bind: |
| if (!tcf_block_cb_decref(block_cb)) { |
| __tcf_block_cb_unregister(block_cb); |
| err_cb_register: |
| mlxsw_sp_acl_block_destroy(acl_block); |
| } |
| return err; |
| } |
| |
| static void |
| mlxsw_sp_setup_tc_block_flower_unbind(struct mlxsw_sp_port *mlxsw_sp_port, |
| struct tcf_block *block, bool ingress) |
| { |
| struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| struct mlxsw_sp_acl_block *acl_block; |
| struct tcf_block_cb *block_cb; |
| int err; |
| |
| block_cb = tcf_block_cb_lookup(block, mlxsw_sp_setup_tc_block_cb_flower, |
| mlxsw_sp); |
| if (!block_cb) |
| return; |
| |
| if (ingress) |
| mlxsw_sp_port->ing_acl_block = NULL; |
| else |
| mlxsw_sp_port->eg_acl_block = NULL; |
| |
| acl_block = tcf_block_cb_priv(block_cb); |
| err = mlxsw_sp_acl_block_unbind(mlxsw_sp, acl_block, |
| mlxsw_sp_port, ingress); |
| if (!err && !tcf_block_cb_decref(block_cb)) { |
| __tcf_block_cb_unregister(block_cb); |
| mlxsw_sp_acl_block_destroy(acl_block); |
| } |
| } |
| |
| static int mlxsw_sp_setup_tc_block(struct mlxsw_sp_port *mlxsw_sp_port, |
| struct tc_block_offload *f) |
| { |
| tc_setup_cb_t *cb; |
| bool ingress; |
| int err; |
| |
| if (f->binder_type == TCF_BLOCK_BINDER_TYPE_CLSACT_INGRESS) { |
| cb = mlxsw_sp_setup_tc_block_cb_matchall_ig; |
| ingress = true; |
| } else if (f->binder_type == TCF_BLOCK_BINDER_TYPE_CLSACT_EGRESS) { |
| cb = mlxsw_sp_setup_tc_block_cb_matchall_eg; |
| ingress = false; |
| } else { |
| return -EOPNOTSUPP; |
| } |
| |
| switch (f->command) { |
| case TC_BLOCK_BIND: |
| err = tcf_block_cb_register(f->block, cb, mlxsw_sp_port, |
| mlxsw_sp_port); |
| if (err) |
| return err; |
| err = mlxsw_sp_setup_tc_block_flower_bind(mlxsw_sp_port, |
| f->block, ingress); |
| if (err) { |
| tcf_block_cb_unregister(f->block, cb, mlxsw_sp_port); |
| return err; |
| } |
| return 0; |
| case TC_BLOCK_UNBIND: |
| mlxsw_sp_setup_tc_block_flower_unbind(mlxsw_sp_port, |
| f->block, ingress); |
| tcf_block_cb_unregister(f->block, cb, mlxsw_sp_port); |
| return 0; |
| default: |
| return -EOPNOTSUPP; |
| } |
| } |
| |
| static int mlxsw_sp_setup_tc(struct net_device *dev, enum tc_setup_type type, |
| void *type_data) |
| { |
| struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); |
| |
| switch (type) { |
| case TC_SETUP_BLOCK: |
| return mlxsw_sp_setup_tc_block(mlxsw_sp_port, type_data); |
| case TC_SETUP_QDISC_RED: |
| return mlxsw_sp_setup_tc_red(mlxsw_sp_port, type_data); |
| case TC_SETUP_QDISC_PRIO: |
| return mlxsw_sp_setup_tc_prio(mlxsw_sp_port, type_data); |
| default: |
| return -EOPNOTSUPP; |
| } |
| } |
| |
| |
| static int mlxsw_sp_feature_hw_tc(struct net_device *dev, bool enable) |
| { |
| struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); |
| |
| if (!enable) { |
| if (mlxsw_sp_acl_block_rule_count(mlxsw_sp_port->ing_acl_block) || |
| mlxsw_sp_acl_block_rule_count(mlxsw_sp_port->eg_acl_block) || |
| !list_empty(&mlxsw_sp_port->mall_tc_list)) { |
| netdev_err(dev, "Active offloaded tc filters, can't turn hw_tc_offload off\n"); |
| return -EINVAL; |
| } |
| mlxsw_sp_acl_block_disable_inc(mlxsw_sp_port->ing_acl_block); |
| mlxsw_sp_acl_block_disable_inc(mlxsw_sp_port->eg_acl_block); |
| } else { |
| mlxsw_sp_acl_block_disable_dec(mlxsw_sp_port->ing_acl_block); |
| mlxsw_sp_acl_block_disable_dec(mlxsw_sp_port->eg_acl_block); |
| } |
| return 0; |
| } |
| |
| typedef int (*mlxsw_sp_feature_handler)(struct net_device *dev, bool enable); |
| |
| static int mlxsw_sp_handle_feature(struct net_device *dev, |
| netdev_features_t wanted_features, |
| netdev_features_t feature, |
| mlxsw_sp_feature_handler feature_handler) |
| { |
| netdev_features_t changes = wanted_features ^ dev->features; |
| bool enable = !!(wanted_features & feature); |
| int err; |
| |
| if (!(changes & feature)) |
| return 0; |
| |
| err = feature_handler(dev, enable); |
| if (err) { |
| netdev_err(dev, "%s feature %pNF failed, err %d\n", |
| enable ? "Enable" : "Disable", &feature, err); |
| return err; |
| } |
| |
| if (enable) |
| dev->features |= feature; |
| else |
| dev->features &= ~feature; |
| |
| return 0; |
| } |
| static int mlxsw_sp_set_features(struct net_device *dev, |
| netdev_features_t features) |
| { |
| return mlxsw_sp_handle_feature(dev, features, NETIF_F_HW_TC, |
| mlxsw_sp_feature_hw_tc); |
| } |
| |
| static const struct net_device_ops mlxsw_sp_port_netdev_ops = { |
| .ndo_open = mlxsw_sp_port_open, |
| .ndo_stop = mlxsw_sp_port_stop, |
| .ndo_start_xmit = mlxsw_sp_port_xmit, |
| .ndo_setup_tc = mlxsw_sp_setup_tc, |
| .ndo_set_rx_mode = mlxsw_sp_set_rx_mode, |
| .ndo_set_mac_address = mlxsw_sp_port_set_mac_address, |
| .ndo_change_mtu = mlxsw_sp_port_change_mtu, |
| .ndo_get_stats64 = mlxsw_sp_port_get_stats64, |
| .ndo_has_offload_stats = mlxsw_sp_port_has_offload_stats, |
| .ndo_get_offload_stats = mlxsw_sp_port_get_offload_stats, |
| .ndo_vlan_rx_add_vid = mlxsw_sp_port_add_vid, |
| .ndo_vlan_rx_kill_vid = mlxsw_sp_port_kill_vid, |
| .ndo_get_phys_port_name = mlxsw_sp_port_get_phys_port_name, |
| .ndo_set_features = mlxsw_sp_set_features, |
| }; |
| |
| static void mlxsw_sp_port_get_drvinfo(struct net_device *dev, |
| struct ethtool_drvinfo *drvinfo) |
| { |
| struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); |
| struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| |
| strlcpy(drvinfo->driver, mlxsw_sp_driver_name, sizeof(drvinfo->driver)); |
| strlcpy(drvinfo->version, mlxsw_sp_driver_version, |
| sizeof(drvinfo->version)); |
| snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version), |
| "%d.%d.%d", |
| mlxsw_sp->bus_info->fw_rev.major, |
| mlxsw_sp->bus_info->fw_rev.minor, |
| mlxsw_sp->bus_info->fw_rev.subminor); |
| strlcpy(drvinfo->bus_info, mlxsw_sp->bus_info->device_name, |
| sizeof(drvinfo->bus_info)); |
| } |
| |
| static void mlxsw_sp_port_get_pauseparam(struct net_device *dev, |
| struct ethtool_pauseparam *pause) |
| { |
| struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); |
| |
| pause->rx_pause = mlxsw_sp_port->link.rx_pause; |
| pause->tx_pause = mlxsw_sp_port->link.tx_pause; |
| } |
| |
| static int mlxsw_sp_port_pause_set(struct mlxsw_sp_port *mlxsw_sp_port, |
| struct ethtool_pauseparam *pause) |
| { |
| char pfcc_pl[MLXSW_REG_PFCC_LEN]; |
| |
| mlxsw_reg_pfcc_pack(pfcc_pl, mlxsw_sp_port->local_port); |
| mlxsw_reg_pfcc_pprx_set(pfcc_pl, pause->rx_pause); |
| mlxsw_reg_pfcc_pptx_set(pfcc_pl, pause->tx_pause); |
| |
| return mlxsw_reg_write(mlxsw_sp_port->mlxsw_sp->core, MLXSW_REG(pfcc), |
| pfcc_pl); |
| } |
| |
| static int mlxsw_sp_port_set_pauseparam(struct net_device *dev, |
| struct ethtool_pauseparam *pause) |
| { |
| struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); |
| bool pause_en = pause->tx_pause || pause->rx_pause; |
| int err; |
| |
| if (mlxsw_sp_port->dcb.pfc && mlxsw_sp_port->dcb.pfc->pfc_en) { |
| netdev_err(dev, "PFC already enabled on port\n"); |
| return -EINVAL; |
| } |
| |
| if (pause->autoneg) { |
| netdev_err(dev, "PAUSE frames autonegotiation isn't supported\n"); |
| return -EINVAL; |
| } |
| |
| err = mlxsw_sp_port_headroom_set(mlxsw_sp_port, dev->mtu, pause_en); |
| if (err) { |
| netdev_err(dev, "Failed to configure port's headroom\n"); |
| return err; |
| } |
| |
| err = mlxsw_sp_port_pause_set(mlxsw_sp_port, pause); |
| if (err) { |
| netdev_err(dev, "Failed to set PAUSE parameters\n"); |
| goto err_port_pause_configure; |
| } |
| |
| mlxsw_sp_port->link.rx_pause = pause->rx_pause; |
| mlxsw_sp_port->link.tx_pause = pause->tx_pause; |
| |
| return 0; |
| |
| err_port_pause_configure: |
| pause_en = mlxsw_sp_port_is_pause_en(mlxsw_sp_port); |
| mlxsw_sp_port_headroom_set(mlxsw_sp_port, dev->mtu, pause_en); |
| return err; |
| } |
| |
| struct mlxsw_sp_port_hw_stats { |
| char str[ETH_GSTRING_LEN]; |
| u64 (*getter)(const char *payload); |
| bool cells_bytes; |
| }; |
| |
| static struct mlxsw_sp_port_hw_stats mlxsw_sp_port_hw_stats[] = { |
| { |
| .str = "a_frames_transmitted_ok", |
| .getter = mlxsw_reg_ppcnt_a_frames_transmitted_ok_get, |
| }, |
| { |
| .str = "a_frames_received_ok", |
| .getter = mlxsw_reg_ppcnt_a_frames_received_ok_get, |
| }, |
| { |
| .str = "a_frame_check_sequence_errors", |
| .getter = mlxsw_reg_ppcnt_a_frame_check_sequence_errors_get, |
| }, |
| { |
| .str = "a_alignment_errors", |
| .getter = mlxsw_reg_ppcnt_a_alignment_errors_get, |
| }, |
| { |
| .str = "a_octets_transmitted_ok", |
| .getter = mlxsw_reg_ppcnt_a_octets_transmitted_ok_get, |
| }, |
| { |
| .str = "a_octets_received_ok", |
| .getter = mlxsw_reg_ppcnt_a_octets_received_ok_get, |
| }, |
| { |
| .str = "a_multicast_frames_xmitted_ok", |
| .getter = mlxsw_reg_ppcnt_a_multicast_frames_xmitted_ok_get, |
| }, |
| { |
| .str = "a_broadcast_frames_xmitted_ok", |
| .getter = mlxsw_reg_ppcnt_a_broadcast_frames_xmitted_ok_get, |
| }, |
| { |
| .str = "a_multicast_frames_received_ok", |
| .getter = mlxsw_reg_ppcnt_a_multicast_frames_received_ok_get, |
| }, |
| { |
| .str = "a_broadcast_frames_received_ok", |
| .getter = mlxsw_reg_ppcnt_a_broadcast_frames_received_ok_get, |
| }, |
| { |
| .str = "a_in_range_length_errors", |
| .getter = mlxsw_reg_ppcnt_a_in_range_length_errors_get, |
| }, |
| { |
| .str = "a_out_of_range_length_field", |
| .getter = mlxsw_reg_ppcnt_a_out_of_range_length_field_get, |
| }, |
| { |
| .str = "a_frame_too_long_errors", |
| .getter = mlxsw_reg_ppcnt_a_frame_too_long_errors_get, |
| }, |
| { |
| .str = "a_symbol_error_during_carrier", |
| .getter = mlxsw_reg_ppcnt_a_symbol_error_during_carrier_get, |
| }, |
| { |
| .str = "a_mac_control_frames_transmitted", |
| .getter = mlxsw_reg_ppcnt_a_mac_control_frames_transmitted_get, |
| }, |
| { |
| .str = "a_mac_control_frames_received", |
| .getter = mlxsw_reg_ppcnt_a_mac_control_frames_received_get, |
| }, |
| { |
| .str = "a_unsupported_opcodes_received", |
| .getter = mlxsw_reg_ppcnt_a_unsupported_opcodes_received_get, |
| }, |
| { |
| .str = "a_pause_mac_ctrl_frames_received", |
| .getter = mlxsw_reg_ppcnt_a_pause_mac_ctrl_frames_received_get, |
| }, |
| { |
| .str = "a_pause_mac_ctrl_frames_xmitted", |
| .getter = mlxsw_reg_ppcnt_a_pause_mac_ctrl_frames_transmitted_get, |
| }, |
| }; |
| |
| #define MLXSW_SP_PORT_HW_STATS_LEN ARRAY_SIZE(mlxsw_sp_port_hw_stats) |
| |
| static struct mlxsw_sp_port_hw_stats mlxsw_sp_port_hw_prio_stats[] = { |
| { |
| .str = "rx_octets_prio", |
| .getter = mlxsw_reg_ppcnt_rx_octets_get, |
| }, |
| { |
| .str = "rx_frames_prio", |
| .getter = mlxsw_reg_ppcnt_rx_frames_get, |
| }, |
| { |
| .str = "tx_octets_prio", |
| .getter = mlxsw_reg_ppcnt_tx_octets_get, |
| }, |
| { |
| .str = "tx_frames_prio", |
| .getter = mlxsw_reg_ppcnt_tx_frames_get, |
| }, |
| { |
| .str = "rx_pause_prio", |
| .getter = mlxsw_reg_ppcnt_rx_pause_get, |
| }, |
| { |
| .str = "rx_pause_duration_prio", |
| .getter = mlxsw_reg_ppcnt_rx_pause_duration_get, |
| }, |
| { |
| .str = "tx_pause_prio", |
| .getter = mlxsw_reg_ppcnt_tx_pause_get, |
| }, |
| { |
| .str = "tx_pause_duration_prio", |
| .getter = mlxsw_reg_ppcnt_tx_pause_duration_get, |
| }, |
| }; |
| |
| #define MLXSW_SP_PORT_HW_PRIO_STATS_LEN ARRAY_SIZE(mlxsw_sp_port_hw_prio_stats) |
| |
| static struct mlxsw_sp_port_hw_stats mlxsw_sp_port_hw_tc_stats[] = { |
| { |
| .str = "tc_transmit_queue_tc", |
| .getter = mlxsw_reg_ppcnt_tc_transmit_queue_get, |
| .cells_bytes = true, |
| }, |
| { |
| .str = "tc_no_buffer_discard_uc_tc", |
| .getter = mlxsw_reg_ppcnt_tc_no_buffer_discard_uc_get, |
| }, |
| }; |
| |
| #define MLXSW_SP_PORT_HW_TC_STATS_LEN ARRAY_SIZE(mlxsw_sp_port_hw_tc_stats) |
| |
| #define MLXSW_SP_PORT_ETHTOOL_STATS_LEN (MLXSW_SP_PORT_HW_STATS_LEN + \ |
| (MLXSW_SP_PORT_HW_PRIO_STATS_LEN + \ |
| MLXSW_SP_PORT_HW_TC_STATS_LEN) * \ |
| IEEE_8021QAZ_MAX_TCS) |
| |
| static void mlxsw_sp_port_get_prio_strings(u8 **p, int prio) |
| { |
| int i; |
| |
| for (i = 0; i < MLXSW_SP_PORT_HW_PRIO_STATS_LEN; i++) { |
| snprintf(*p, ETH_GSTRING_LEN, "%s_%d", |
| mlxsw_sp_port_hw_prio_stats[i].str, prio); |
| *p += ETH_GSTRING_LEN; |
| } |
| } |
| |
| static void mlxsw_sp_port_get_tc_strings(u8 **p, int tc) |
| { |
| int i; |
| |
| for (i = 0; i < MLXSW_SP_PORT_HW_TC_STATS_LEN; i++) { |
| snprintf(*p, ETH_GSTRING_LEN, "%s_%d", |
| mlxsw_sp_port_hw_tc_stats[i].str, tc); |
| *p += ETH_GSTRING_LEN; |
| } |
| } |
| |
| static void mlxsw_sp_port_get_strings(struct net_device *dev, |
| u32 stringset, u8 *data) |
| { |
| u8 *p = data; |
| int i; |
| |
| switch (stringset) { |
| case ETH_SS_STATS: |
| for (i = 0; i < MLXSW_SP_PORT_HW_STATS_LEN; i++) { |
| memcpy(p, mlxsw_sp_port_hw_stats[i].str, |
| ETH_GSTRING_LEN); |
| p += ETH_GSTRING_LEN; |
| } |
| |
| for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) |
| mlxsw_sp_port_get_prio_strings(&p, i); |
| |
| for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) |
| mlxsw_sp_port_get_tc_strings(&p, i); |
| |
| break; |
| } |
| } |
| |
| static int mlxsw_sp_port_set_phys_id(struct net_device *dev, |
| enum ethtool_phys_id_state state) |
| { |
| struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); |
| struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| char mlcr_pl[MLXSW_REG_MLCR_LEN]; |
| bool active; |
| |
| switch (state) { |
| case ETHTOOL_ID_ACTIVE: |
| active = true; |
| break; |
| case ETHTOOL_ID_INACTIVE: |
| active = false; |
| break; |
| default: |
| return -EOPNOTSUPP; |
| } |
| |
| mlxsw_reg_mlcr_pack(mlcr_pl, mlxsw_sp_port->local_port, active); |
| return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mlcr), mlcr_pl); |
| } |
| |
| static int |
| mlxsw_sp_get_hw_stats_by_group(struct mlxsw_sp_port_hw_stats **p_hw_stats, |
| int *p_len, enum mlxsw_reg_ppcnt_grp grp) |
| { |
| switch (grp) { |
| case MLXSW_REG_PPCNT_IEEE_8023_CNT: |
| *p_hw_stats = mlxsw_sp_port_hw_stats; |
| *p_len = MLXSW_SP_PORT_HW_STATS_LEN; |
| break; |
| case MLXSW_REG_PPCNT_PRIO_CNT: |
| *p_hw_stats = mlxsw_sp_port_hw_prio_stats; |
| *p_len = MLXSW_SP_PORT_HW_PRIO_STATS_LEN; |
| break; |
| case MLXSW_REG_PPCNT_TC_CNT: |
| *p_hw_stats = mlxsw_sp_port_hw_tc_stats; |
| *p_len = MLXSW_SP_PORT_HW_TC_STATS_LEN; |
| break; |
| default: |
| WARN_ON(1); |
| return -EOPNOTSUPP; |
| } |
| return 0; |
| } |
| |
| static void __mlxsw_sp_port_get_stats(struct net_device *dev, |
| enum mlxsw_reg_ppcnt_grp grp, int prio, |
| u64 *data, int data_index) |
| { |
| struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); |
| struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| struct mlxsw_sp_port_hw_stats *hw_stats; |
| char ppcnt_pl[MLXSW_REG_PPCNT_LEN]; |
| int i, len; |
| int err; |
| |
| err = mlxsw_sp_get_hw_stats_by_group(&hw_stats, &len, grp); |
| if (err) |
| return; |
| mlxsw_sp_port_get_stats_raw(dev, grp, prio, ppcnt_pl); |
| for (i = 0; i < len; i++) { |
| data[data_index + i] = hw_stats[i].getter(ppcnt_pl); |
| if (!hw_stats[i].cells_bytes) |
| continue; |
| data[data_index + i] = mlxsw_sp_cells_bytes(mlxsw_sp, |
| data[data_index + i]); |
| } |
| } |
| |
| static void mlxsw_sp_port_get_stats(struct net_device *dev, |
| struct ethtool_stats *stats, u64 *data) |
| { |
| int i, data_index = 0; |
| |
| /* IEEE 802.3 Counters */ |
| __mlxsw_sp_port_get_stats(dev, MLXSW_REG_PPCNT_IEEE_8023_CNT, 0, |
| data, data_index); |
| data_index = MLXSW_SP_PORT_HW_STATS_LEN; |
| |
| /* Per-Priority Counters */ |
| for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) { |
| __mlxsw_sp_port_get_stats(dev, MLXSW_REG_PPCNT_PRIO_CNT, i, |
| data, data_index); |
| data_index += MLXSW_SP_PORT_HW_PRIO_STATS_LEN; |
| } |
| |
| /* Per-TC Counters */ |
| for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) { |
| __mlxsw_sp_port_get_stats(dev, MLXSW_REG_PPCNT_TC_CNT, i, |
| data, data_index); |
| data_index += MLXSW_SP_PORT_HW_TC_STATS_LEN; |
| } |
| } |
| |
| static int mlxsw_sp_port_get_sset_count(struct net_device *dev, int sset) |
| { |
| switch (sset) { |
| case ETH_SS_STATS: |
| return MLXSW_SP_PORT_ETHTOOL_STATS_LEN; |
| default: |
| return -EOPNOTSUPP; |
| } |
| } |
| |
| struct mlxsw_sp_port_link_mode { |
| enum ethtool_link_mode_bit_indices mask_ethtool; |
| u32 mask; |
| u32 speed; |
| }; |
| |
| static const struct mlxsw_sp_port_link_mode mlxsw_sp_port_link_mode[] = { |
| { |
| .mask = MLXSW_REG_PTYS_ETH_SPEED_100BASE_T, |
| .mask_ethtool = ETHTOOL_LINK_MODE_100baseT_Full_BIT, |
| .speed = SPEED_100, |
| }, |
| { |
| .mask = MLXSW_REG_PTYS_ETH_SPEED_SGMII | |
| MLXSW_REG_PTYS_ETH_SPEED_1000BASE_KX, |
| .mask_ethtool = ETHTOOL_LINK_MODE_1000baseKX_Full_BIT, |
| .speed = SPEED_1000, |
| }, |
| { |
| .mask = MLXSW_REG_PTYS_ETH_SPEED_10GBASE_T, |
| .mask_ethtool = ETHTOOL_LINK_MODE_10000baseT_Full_BIT, |
| .speed = SPEED_10000, |
| }, |
| { |
| .mask = MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CX4 | |
| MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KX4, |
| .mask_ethtool = ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT, |
| .speed = SPEED_10000, |
| }, |
| { |
| .mask = MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KR | |
| MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CR | |
| MLXSW_REG_PTYS_ETH_SPEED_10GBASE_SR | |
| MLXSW_REG_PTYS_ETH_SPEED_10GBASE_ER_LR, |
| .mask_ethtool = ETHTOOL_LINK_MODE_10000baseKR_Full_BIT, |
| .speed = SPEED_10000, |
| }, |
| { |
| .mask = MLXSW_REG_PTYS_ETH_SPEED_20GBASE_KR2, |
| .mask_ethtool = ETHTOOL_LINK_MODE_20000baseKR2_Full_BIT, |
| .speed = SPEED_20000, |
| }, |
| { |
| .mask = MLXSW_REG_PTYS_ETH_SPEED_40GBASE_CR4, |
| .mask_ethtool = ETHTOOL_LINK_MODE_40000baseCR4_Full_BIT, |
| .speed = SPEED_40000, |
| }, |
| { |
| .mask = MLXSW_REG_PTYS_ETH_SPEED_40GBASE_KR4, |
| .mask_ethtool = ETHTOOL_LINK_MODE_40000baseKR4_Full_BIT, |
| .speed = SPEED_40000, |
| }, |
| { |
| .mask = MLXSW_REG_PTYS_ETH_SPEED_40GBASE_SR4, |
| .mask_ethtool = ETHTOOL_LINK_MODE_40000baseSR4_Full_BIT, |
| .speed = SPEED_40000, |
| }, |
| { |
| .mask = MLXSW_REG_PTYS_ETH_SPEED_40GBASE_LR4_ER4, |
| .mask_ethtool = ETHTOOL_LINK_MODE_40000baseLR4_Full_BIT, |
| .speed = SPEED_40000, |
| }, |
| { |
| .mask = MLXSW_REG_PTYS_ETH_SPEED_25GBASE_CR, |
| .mask_ethtool = ETHTOOL_LINK_MODE_25000baseCR_Full_BIT, |
| .speed = SPEED_25000, |
| }, |
| { |
| .mask = MLXSW_REG_PTYS_ETH_SPEED_25GBASE_KR, |
| .mask_ethtool = ETHTOOL_LINK_MODE_25000baseKR_Full_BIT, |
| .speed = SPEED_25000, |
| }, |
| { |
| .mask = MLXSW_REG_PTYS_ETH_SPEED_25GBASE_SR, |
| .mask_ethtool = ETHTOOL_LINK_MODE_25000baseSR_Full_BIT, |
| .speed = SPEED_25000, |
| }, |
| { |
| .mask = MLXSW_REG_PTYS_ETH_SPEED_25GBASE_SR, |
| .mask_ethtool = ETHTOOL_LINK_MODE_25000baseSR_Full_BIT, |
| .speed = SPEED_25000, |
| }, |
| { |
| .mask = MLXSW_REG_PTYS_ETH_SPEED_50GBASE_CR2, |
| .mask_ethtool = ETHTOOL_LINK_MODE_50000baseCR2_Full_BIT, |
| .speed = SPEED_50000, |
| }, |
| { |
| .mask = MLXSW_REG_PTYS_ETH_SPEED_50GBASE_KR2, |
| .mask_ethtool = ETHTOOL_LINK_MODE_50000baseKR2_Full_BIT, |
| .speed = SPEED_50000, |
| }, |
| { |
| .mask = MLXSW_REG_PTYS_ETH_SPEED_50GBASE_SR2, |
| .mask_ethtool = ETHTOOL_LINK_MODE_50000baseSR2_Full_BIT, |
| .speed = SPEED_50000, |
| }, |
| { |
| .mask = MLXSW_REG_PTYS_ETH_SPEED_56GBASE_R4, |
| .mask_ethtool = ETHTOOL_LINK_MODE_56000baseKR4_Full_BIT, |
| .speed = SPEED_56000, |
| }, |
| { |
| .mask = MLXSW_REG_PTYS_ETH_SPEED_56GBASE_R4, |
| .mask_ethtool = ETHTOOL_LINK_MODE_56000baseCR4_Full_BIT, |
| .speed = SPEED_56000, |
| }, |
| { |
| .mask = MLXSW_REG_PTYS_ETH_SPEED_56GBASE_R4, |
| .mask_ethtool = ETHTOOL_LINK_MODE_56000baseSR4_Full_BIT, |
| .speed = SPEED_56000, |
| }, |
| { |
| .mask = MLXSW_REG_PTYS_ETH_SPEED_56GBASE_R4, |
| .mask_ethtool = ETHTOOL_LINK_MODE_56000baseLR4_Full_BIT, |
| .speed = SPEED_56000, |
| }, |
| { |
| .mask = MLXSW_REG_PTYS_ETH_SPEED_100GBASE_CR4, |
| .mask_ethtool = ETHTOOL_LINK_MODE_100000baseCR4_Full_BIT, |
| .speed = SPEED_100000, |
| }, |
| { |
| .mask = MLXSW_REG_PTYS_ETH_SPEED_100GBASE_SR4, |
| .mask_ethtool = ETHTOOL_LINK_MODE_100000baseSR4_Full_BIT, |
| .speed = SPEED_100000, |
| }, |
| { |
| .mask = MLXSW_REG_PTYS_ETH_SPEED_100GBASE_KR4, |
| .mask_ethtool = ETHTOOL_LINK_MODE_100000baseKR4_Full_BIT, |
| .speed = SPEED_100000, |
| }, |
| { |
| .mask = MLXSW_REG_PTYS_ETH_SPEED_100GBASE_LR4_ER4, |
| .mask_ethtool = ETHTOOL_LINK_MODE_100000baseLR4_ER4_Full_BIT, |
| .speed = SPEED_100000, |
| }, |
| }; |
| |
| #define MLXSW_SP_PORT_LINK_MODE_LEN ARRAY_SIZE(mlxsw_sp_port_link_mode) |
| |
| static void |
| mlxsw_sp_from_ptys_supported_port(u32 ptys_eth_proto, |
| struct ethtool_link_ksettings *cmd) |
| { |
| if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CR | |
| MLXSW_REG_PTYS_ETH_SPEED_10GBASE_SR | |
| MLXSW_REG_PTYS_ETH_SPEED_40GBASE_CR4 | |
| MLXSW_REG_PTYS_ETH_SPEED_40GBASE_SR4 | |
| MLXSW_REG_PTYS_ETH_SPEED_100GBASE_SR4 | |
| MLXSW_REG_PTYS_ETH_SPEED_SGMII)) |
| ethtool_link_ksettings_add_link_mode(cmd, supported, FIBRE); |
| |
| if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KR | |
| MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KX4 | |
| MLXSW_REG_PTYS_ETH_SPEED_40GBASE_KR4 | |
| MLXSW_REG_PTYS_ETH_SPEED_100GBASE_KR4 | |
| MLXSW_REG_PTYS_ETH_SPEED_1000BASE_KX)) |
| ethtool_link_ksettings_add_link_mode(cmd, supported, Backplane); |
| } |
| |
| static void mlxsw_sp_from_ptys_link(u32 ptys_eth_proto, unsigned long *mode) |
| { |
| int i; |
| |
| for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) { |
| if (ptys_eth_proto & mlxsw_sp_port_link_mode[i].mask) |
| __set_bit(mlxsw_sp_port_link_mode[i].mask_ethtool, |
| mode); |
| } |
| } |
| |
| static void mlxsw_sp_from_ptys_speed_duplex(bool carrier_ok, u32 ptys_eth_proto, |
| struct ethtool_link_ksettings *cmd) |
| { |
| u32 speed = SPEED_UNKNOWN; |
| u8 duplex = DUPLEX_UNKNOWN; |
| int i; |
| |
| if (!carrier_ok) |
| goto out; |
| |
| for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) { |
| if (ptys_eth_proto & mlxsw_sp_port_link_mode[i].mask) { |
| speed = mlxsw_sp_port_link_mode[i].speed; |
| duplex = DUPLEX_FULL; |
| break; |
| } |
| } |
| out: |
| cmd->base.speed = speed; |
| cmd->base.duplex = duplex; |
| } |
| |
| static u8 mlxsw_sp_port_connector_port(u32 ptys_eth_proto) |
| { |
| if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_SR | |
| MLXSW_REG_PTYS_ETH_SPEED_40GBASE_SR4 | |
| MLXSW_REG_PTYS_ETH_SPEED_100GBASE_SR4 | |
| MLXSW_REG_PTYS_ETH_SPEED_SGMII)) |
| return PORT_FIBRE; |
| |
| if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CR | |
| MLXSW_REG_PTYS_ETH_SPEED_40GBASE_CR4 | |
| MLXSW_REG_PTYS_ETH_SPEED_100GBASE_CR4)) |
| return PORT_DA; |
| |
| if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KR | |
| MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KX4 | |
| MLXSW_REG_PTYS_ETH_SPEED_40GBASE_KR4 | |
| MLXSW_REG_PTYS_ETH_SPEED_100GBASE_KR4)) |
| return PORT_NONE; |
| |
| return PORT_OTHER; |
| } |
| |
| static u32 |
| mlxsw_sp_to_ptys_advert_link(const struct ethtool_link_ksettings *cmd) |
| { |
| u32 ptys_proto = 0; |
| int i; |
| |
| for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) { |
| if (test_bit(mlxsw_sp_port_link_mode[i].mask_ethtool, |
| cmd->link_modes.advertising)) |
| ptys_proto |= mlxsw_sp_port_link_mode[i].mask; |
| } |
| return ptys_proto; |
| } |
| |
| static u32 mlxsw_sp_to_ptys_speed(u32 speed) |
| { |
| u32 ptys_proto = 0; |
| int i; |
| |
| for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) { |
| if (speed == mlxsw_sp_port_link_mode[i].speed) |
| ptys_proto |= mlxsw_sp_port_link_mode[i].mask; |
| } |
| return ptys_proto; |
| } |
| |
| static u32 mlxsw_sp_to_ptys_upper_speed(u32 upper_speed) |
| { |
| u32 ptys_proto = 0; |
| int i; |
| |
| for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) { |
| if (mlxsw_sp_port_link_mode[i].speed <= upper_speed) |
| ptys_proto |= mlxsw_sp_port_link_mode[i].mask; |
| } |
| return ptys_proto; |
| } |
| |
| static void mlxsw_sp_port_get_link_supported(u32 eth_proto_cap, |
| struct ethtool_link_ksettings *cmd) |
| { |
| ethtool_link_ksettings_add_link_mode(cmd, supported, Asym_Pause); |
| ethtool_link_ksettings_add_link_mode(cmd, supported, Autoneg); |
| ethtool_link_ksettings_add_link_mode(cmd, supported, Pause); |
| |
| mlxsw_sp_from_ptys_supported_port(eth_proto_cap, cmd); |
| mlxsw_sp_from_ptys_link(eth_proto_cap, cmd->link_modes.supported); |
| } |
| |
| static void mlxsw_sp_port_get_link_advertise(u32 eth_proto_admin, bool autoneg, |
| struct ethtool_link_ksettings *cmd) |
| { |
| if (!autoneg) |
| return; |
| |
| ethtool_link_ksettings_add_link_mode(cmd, advertising, Autoneg); |
| mlxsw_sp_from_ptys_link(eth_proto_admin, cmd->link_modes.advertising); |
| } |
| |
| static void |
| mlxsw_sp_port_get_link_lp_advertise(u32 eth_proto_lp, u8 autoneg_status, |
| struct ethtool_link_ksettings *cmd) |
| { |
| if (autoneg_status != MLXSW_REG_PTYS_AN_STATUS_OK || !eth_proto_lp) |
| return; |
| |
| ethtool_link_ksettings_add_link_mode(cmd, lp_advertising, Autoneg); |
| mlxsw_sp_from_ptys_link(eth_proto_lp, cmd->link_modes.lp_advertising); |
| } |
| |
| static int mlxsw_sp_port_get_link_ksettings(struct net_device *dev, |
| struct ethtool_link_ksettings *cmd) |
| { |
| u32 eth_proto_cap, eth_proto_admin, eth_proto_oper, eth_proto_lp; |
| struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); |
| struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| char ptys_pl[MLXSW_REG_PTYS_LEN]; |
| u8 autoneg_status; |
| bool autoneg; |
| int err; |
| |
| autoneg = mlxsw_sp_port->link.autoneg; |
| mlxsw_reg_ptys_eth_pack(ptys_pl, mlxsw_sp_port->local_port, 0, false); |
| err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl); |
| if (err) |
| return err; |
| mlxsw_reg_ptys_eth_unpack(ptys_pl, ð_proto_cap, ð_proto_admin, |
| ð_proto_oper); |
| |
| mlxsw_sp_port_get_link_supported(eth_proto_cap, cmd); |
| |
| mlxsw_sp_port_get_link_advertise(eth_proto_admin, autoneg, cmd); |
| |
| eth_proto_lp = mlxsw_reg_ptys_eth_proto_lp_advertise_get(ptys_pl); |
| autoneg_status = mlxsw_reg_ptys_an_status_get(ptys_pl); |
| mlxsw_sp_port_get_link_lp_advertise(eth_proto_lp, autoneg_status, cmd); |
| |
| cmd->base.autoneg = autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE; |
| cmd->base.port = mlxsw_sp_port_connector_port(eth_proto_oper); |
| mlxsw_sp_from_ptys_speed_duplex(netif_carrier_ok(dev), eth_proto_oper, |
| cmd); |
| |
| return 0; |
| } |
| |
| static int |
| mlxsw_sp_port_set_link_ksettings(struct net_device *dev, |
| const struct ethtool_link_ksettings *cmd) |
| { |
| struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); |
| struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| char ptys_pl[MLXSW_REG_PTYS_LEN]; |
| u32 eth_proto_cap, eth_proto_new; |
| bool autoneg; |
| int err; |
| |
| mlxsw_reg_ptys_eth_pack(ptys_pl, mlxsw_sp_port->local_port, 0, false); |
| err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl); |
| if (err) |
| return err; |
| mlxsw_reg_ptys_eth_unpack(ptys_pl, ð_proto_cap, NULL, NULL); |
| |
| autoneg = cmd->base.autoneg == AUTONEG_ENABLE; |
| eth_proto_new = autoneg ? |
| mlxsw_sp_to_ptys_advert_link(cmd) : |
| mlxsw_sp_to_ptys_speed(cmd->base.speed); |
| |
| eth_proto_new = eth_proto_new & eth_proto_cap; |
| if (!eth_proto_new) { |
| netdev_err(dev, "No supported speed requested\n"); |
| return -EINVAL; |
| } |
| |
| mlxsw_reg_ptys_eth_pack(ptys_pl, mlxsw_sp_port->local_port, |
| eth_proto_new, autoneg); |
| err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl); |
| if (err) |
| return err; |
| |
| if (!netif_running(dev)) |
| return 0; |
| |
| mlxsw_sp_port->link.autoneg = autoneg; |
| |
| mlxsw_sp_port_admin_status_set(mlxsw_sp_port, false); |
| mlxsw_sp_port_admin_status_set(mlxsw_sp_port, true); |
| |
| return 0; |
| } |
| |
| static int mlxsw_sp_flash_device(struct net_device *dev, |
| struct ethtool_flash *flash) |
| { |
| struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); |
| struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| const struct firmware *firmware; |
| int err; |
| |
| if (flash->region != ETHTOOL_FLASH_ALL_REGIONS) |
| return -EOPNOTSUPP; |
| |
| dev_hold(dev); |
| rtnl_unlock(); |
| |
| err = request_firmware_direct(&firmware, flash->data, &dev->dev); |
| if (err) |
| goto out; |
| err = mlxsw_sp_firmware_flash(mlxsw_sp, firmware); |
| release_firmware(firmware); |
| out: |
| rtnl_lock(); |
| dev_put(dev); |
| return err; |
| } |
| |
| #define MLXSW_SP_I2C_ADDR_LOW 0x50 |
| #define MLXSW_SP_I2C_ADDR_HIGH 0x51 |
| #define MLXSW_SP_EEPROM_PAGE_LENGTH 256 |
| |
| static int mlxsw_sp_query_module_eeprom(struct mlxsw_sp_port *mlxsw_sp_port, |
| u16 offset, u16 size, void *data, |
| unsigned int *p_read_size) |
| { |
| struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| char eeprom_tmp[MLXSW_SP_REG_MCIA_EEPROM_SIZE]; |
| char mcia_pl[MLXSW_REG_MCIA_LEN]; |
| u16 i2c_addr; |
| int status; |
| int err; |
| |
| size = min_t(u16, size, MLXSW_SP_REG_MCIA_EEPROM_SIZE); |
| |
| if (offset < MLXSW_SP_EEPROM_PAGE_LENGTH && |
| offset + size > MLXSW_SP_EEPROM_PAGE_LENGTH) |
| /* Cross pages read, read until offset 256 in low page */ |
| size = MLXSW_SP_EEPROM_PAGE_LENGTH - offset; |
| |
| i2c_addr = MLXSW_SP_I2C_ADDR_LOW; |
| if (offset >= MLXSW_SP_EEPROM_PAGE_LENGTH) { |
| i2c_addr = MLXSW_SP_I2C_ADDR_HIGH; |
| offset -= MLXSW_SP_EEPROM_PAGE_LENGTH; |
| } |
| |
| mlxsw_reg_mcia_pack(mcia_pl, mlxsw_sp_port->mapping.module, |
| 0, 0, offset, size, i2c_addr); |
| |
| err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(mcia), mcia_pl); |
| if (err) |
| return err; |
| |
| status = mlxsw_reg_mcia_status_get(mcia_pl); |
| if (status) |
| return -EIO; |
| |
| mlxsw_reg_mcia_eeprom_memcpy_from(mcia_pl, eeprom_tmp); |
| memcpy(data, eeprom_tmp, size); |
| *p_read_size = size; |
| |
| return 0; |
| } |
| |
| enum mlxsw_sp_eeprom_module_info_rev_id { |
| MLXSW_SP_EEPROM_MODULE_INFO_REV_ID_UNSPC = 0x00, |
| MLXSW_SP_EEPROM_MODULE_INFO_REV_ID_8436 = 0x01, |
| MLXSW_SP_EEPROM_MODULE_INFO_REV_ID_8636 = 0x03, |
| }; |
| |
| enum mlxsw_sp_eeprom_module_info_id { |
| MLXSW_SP_EEPROM_MODULE_INFO_ID_SFP = 0x03, |
| MLXSW_SP_EEPROM_MODULE_INFO_ID_QSFP = 0x0C, |
| MLXSW_SP_EEPROM_MODULE_INFO_ID_QSFP_PLUS = 0x0D, |
| MLXSW_SP_EEPROM_MODULE_INFO_ID_QSFP28 = 0x11, |
| }; |
| |
| enum mlxsw_sp_eeprom_module_info { |
| MLXSW_SP_EEPROM_MODULE_INFO_ID, |
| MLXSW_SP_EEPROM_MODULE_INFO_REV_ID, |
| MLXSW_SP_EEPROM_MODULE_INFO_SIZE, |
| }; |
| |
| static int mlxsw_sp_get_module_info(struct net_device *netdev, |
| struct ethtool_modinfo *modinfo) |
| { |
| struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(netdev); |
| u8 module_info[MLXSW_SP_EEPROM_MODULE_INFO_SIZE]; |
| u8 module_rev_id, module_id; |
| unsigned int read_size; |
| int err; |
| |
| err = mlxsw_sp_query_module_eeprom(mlxsw_sp_port, 0, |
| MLXSW_SP_EEPROM_MODULE_INFO_SIZE, |
| module_info, &read_size); |
| if (err) |
| return err; |
| |
| if (read_size < MLXSW_SP_EEPROM_MODULE_INFO_SIZE) |
| return -EIO; |
| |
| module_rev_id = module_info[MLXSW_SP_EEPROM_MODULE_INFO_REV_ID]; |
| module_id = module_info[MLXSW_SP_EEPROM_MODULE_INFO_ID]; |
| |
| switch (module_id) { |
| case MLXSW_SP_EEPROM_MODULE_INFO_ID_QSFP: |
| modinfo->type = ETH_MODULE_SFF_8436; |
| modinfo->eeprom_len = ETH_MODULE_SFF_8436_LEN; |
| break; |
| case MLXSW_SP_EEPROM_MODULE_INFO_ID_QSFP_PLUS: |
| case MLXSW_SP_EEPROM_MODULE_INFO_ID_QSFP28: |
| if (module_id == MLXSW_SP_EEPROM_MODULE_INFO_ID_QSFP28 || |
| module_rev_id >= MLXSW_SP_EEPROM_MODULE_INFO_REV_ID_8636) { |
| modinfo->type = ETH_MODULE_SFF_8636; |
| modinfo->eeprom_len = ETH_MODULE_SFF_8636_LEN; |
| } else { |
| modinfo->type = ETH_MODULE_SFF_8436; |
| modinfo->eeprom_len = ETH_MODULE_SFF_8436_LEN; |
| } |
| break; |
| case MLXSW_SP_EEPROM_MODULE_INFO_ID_SFP: |
| modinfo->type = ETH_MODULE_SFF_8472; |
| modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN; |
| break; |
| default: |
| return -EINVAL; |
| } |
| |
| return 0; |
| } |
| |
| static int mlxsw_sp_get_module_eeprom(struct net_device *netdev, |
| struct ethtool_eeprom *ee, |
| u8 *data) |
| { |
| struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(netdev); |
| int offset = ee->offset; |
| unsigned int read_size; |
| int i = 0; |
| int err; |
| |
| if (!ee->len) |
| return -EINVAL; |
| |
| memset(data, 0, ee->len); |
| |
| while (i < ee->len) { |
| err = mlxsw_sp_query_module_eeprom(mlxsw_sp_port, offset, |
| ee->len - i, data + i, |
| &read_size); |
| if (err) { |
| netdev_err(mlxsw_sp_port->dev, "Eeprom query failed\n"); |
| return err; |
| } |
| |
| i += read_size; |
| offset += read_size; |
| } |
| |
| return 0; |
| } |
| |
| static const struct ethtool_ops mlxsw_sp_port_ethtool_ops = { |
| .get_drvinfo = mlxsw_sp_port_get_drvinfo, |
| .get_link = ethtool_op_get_link, |
| .get_pauseparam = mlxsw_sp_port_get_pauseparam, |
| .set_pauseparam = mlxsw_sp_port_set_pauseparam, |
| .get_strings = mlxsw_sp_port_get_strings, |
| .set_phys_id = mlxsw_sp_port_set_phys_id, |
| .get_ethtool_stats = mlxsw_sp_port_get_stats, |
| .get_sset_count = mlxsw_sp_port_get_sset_count, |
| .get_link_ksettings = mlxsw_sp_port_get_link_ksettings, |
| .set_link_ksettings = mlxsw_sp_port_set_link_ksettings, |
| .flash_device = mlxsw_sp_flash_device, |
| .get_module_info = mlxsw_sp_get_module_info, |
| .get_module_eeprom = mlxsw_sp_get_module_eeprom, |
| }; |
| |
| static int |
| mlxsw_sp_port_speed_by_width_set(struct mlxsw_sp_port *mlxsw_sp_port, u8 width) |
| { |
| struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| u32 upper_speed = MLXSW_SP_PORT_BASE_SPEED * width; |
| char ptys_pl[MLXSW_REG_PTYS_LEN]; |
| u32 eth_proto_admin; |
| |
| eth_proto_admin = mlxsw_sp_to_ptys_upper_speed(upper_speed); |
| mlxsw_reg_ptys_eth_pack(ptys_pl, mlxsw_sp_port->local_port, |
| eth_proto_admin, mlxsw_sp_port->link.autoneg); |
| return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl); |
| } |
| |
| int mlxsw_sp_port_ets_set(struct mlxsw_sp_port *mlxsw_sp_port, |
| enum mlxsw_reg_qeec_hr hr, u8 index, u8 next_index, |
| bool dwrr, u8 dwrr_weight) |
| { |
| struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| char qeec_pl[MLXSW_REG_QEEC_LEN]; |
| |
| mlxsw_reg_qeec_pack(qeec_pl, mlxsw_sp_port->local_port, hr, index, |
| next_index); |
| mlxsw_reg_qeec_de_set(qeec_pl, true); |
| mlxsw_reg_qeec_dwrr_set(qeec_pl, dwrr); |
| mlxsw_reg_qeec_dwrr_weight_set(qeec_pl, dwrr_weight); |
| return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(qeec), qeec_pl); |
| } |
| |
| int mlxsw_sp_port_ets_maxrate_set(struct mlxsw_sp_port *mlxsw_sp_port, |
| enum mlxsw_reg_qeec_hr hr, u8 index, |
| u8 next_index, u32 maxrate) |
| { |
| struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| char qeec_pl[MLXSW_REG_QEEC_LEN]; |
| |
| mlxsw_reg_qeec_pack(qeec_pl, mlxsw_sp_port->local_port, hr, index, |
| next_index); |
| mlxsw_reg_qeec_mase_set(qeec_pl, true); |
| mlxsw_reg_qeec_max_shaper_rate_set(qeec_pl, maxrate); |
| return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(qeec), qeec_pl); |
| } |
| |
| int mlxsw_sp_port_prio_tc_set(struct mlxsw_sp_port *mlxsw_sp_port, |
| u8 switch_prio, u8 tclass) |
| { |
| struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| char qtct_pl[MLXSW_REG_QTCT_LEN]; |
| |
| mlxsw_reg_qtct_pack(qtct_pl, mlxsw_sp_port->local_port, switch_prio, |
| tclass); |
| return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(qtct), qtct_pl); |
| } |
| |
| static int mlxsw_sp_port_ets_init(struct mlxsw_sp_port *mlxsw_sp_port) |
| { |
| int err, i; |
| |
| /* Setup the elements hierarcy, so that each TC is linked to |
| * one subgroup, which are all member in the same group. |
| */ |
| err = mlxsw_sp_port_ets_set(mlxsw_sp_port, |
| MLXSW_REG_QEEC_HIERARCY_GROUP, 0, 0, false, |
| 0); |
| if (err) |
| return err; |
| for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) { |
| err = mlxsw_sp_port_ets_set(mlxsw_sp_port, |
| MLXSW_REG_QEEC_HIERARCY_SUBGROUP, i, |
| 0, false, 0); |
| if (err) |
| return err; |
| } |
| for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) { |
| err = mlxsw_sp_port_ets_set(mlxsw_sp_port, |
| MLXSW_REG_QEEC_HIERARCY_TC, i, i, |
| false, 0); |
| if (err) |
| return err; |
| } |
| |
| /* Make sure the max shaper is disabled in all hierarcies that |
| * support it. |
| */ |
| err = mlxsw_sp_port_ets_maxrate_set(mlxsw_sp_port, |
| MLXSW_REG_QEEC_HIERARCY_PORT, 0, 0, |
| MLXSW_REG_QEEC_MAS_DIS); |
| if (err) |
| return err; |
| for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) { |
| err = mlxsw_sp_port_ets_maxrate_set(mlxsw_sp_port, |
| MLXSW_REG_QEEC_HIERARCY_SUBGROUP, |
| i, 0, |
| MLXSW_REG_QEEC_MAS_DIS); |
| if (err) |
| return err; |
| } |
| for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) { |
| err = mlxsw_sp_port_ets_maxrate_set(mlxsw_sp_port, |
| MLXSW_REG_QEEC_HIERARCY_TC, |
| i, i, |
| MLXSW_REG_QEEC_MAS_DIS); |
| if (err) |
| return err; |
| } |
| |
| /* Map all priorities to traffic class 0. */ |
| for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) { |
| err = mlxsw_sp_port_prio_tc_set(mlxsw_sp_port, i, 0); |
| if (err) |
| return err; |
| } |
| |
| return 0; |
| } |
| |
| static int mlxsw_sp_port_create(struct mlxsw_sp *mlxsw_sp, u8 local_port, |
| bool split, u8 module, u8 width, u8 lane) |
| { |
| struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan; |
| struct mlxsw_sp_port *mlxsw_sp_port; |
| struct net_device *dev; |
| int err; |
| |
| err = mlxsw_core_port_init(mlxsw_sp->core, local_port); |
| if (err) { |
| dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to init core port\n", |
| local_port); |
| return err; |
| } |
| |
| dev = alloc_etherdev(sizeof(struct mlxsw_sp_port)); |
| if (!dev) { |
| err = -ENOMEM; |
| goto err_alloc_etherdev; |
| } |
| SET_NETDEV_DEV(dev, mlxsw_sp->bus_info->dev); |
| mlxsw_sp_port = netdev_priv(dev); |
| mlxsw_sp_port->dev = dev; |
| mlxsw_sp_port->mlxsw_sp = mlxsw_sp; |
| mlxsw_sp_port->local_port = local_port; |
| mlxsw_sp_port->pvid = 1; |
| mlxsw_sp_port->split = split; |
| mlxsw_sp_port->mapping.module = module; |
| mlxsw_sp_port->mapping.width = width; |
| mlxsw_sp_port->mapping.lane = lane; |
| mlxsw_sp_port->link.autoneg = 1; |
| INIT_LIST_HEAD(&mlxsw_sp_port->vlans_list); |
| INIT_LIST_HEAD(&mlxsw_sp_port->mall_tc_list); |
| |
| mlxsw_sp_port->pcpu_stats = |
| netdev_alloc_pcpu_stats(struct mlxsw_sp_port_pcpu_stats); |
| if (!mlxsw_sp_port->pcpu_stats) { |
| err = -ENOMEM; |
| goto err_alloc_stats; |
| } |
| |
| mlxsw_sp_port->sample = kzalloc(sizeof(*mlxsw_sp_port->sample), |
| GFP_KERNEL); |
| if (!mlxsw_sp_port->sample) { |
| err = -ENOMEM; |
| goto err_alloc_sample; |
| } |
| |
| INIT_DELAYED_WORK(&mlxsw_sp_port->periodic_hw_stats.update_dw, |
| &update_stats_cache); |
| |
| dev->netdev_ops = &mlxsw_sp_port_netdev_ops; |
| dev->ethtool_ops = &mlxsw_sp_port_ethtool_ops; |
| |
| err = mlxsw_sp_port_module_map(mlxsw_sp_port, module, width, lane); |
| if (err) { |
| dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to map module\n", |
| mlxsw_sp_port->local_port); |
| goto err_port_module_map; |
| } |
| |
| err = mlxsw_sp_port_swid_set(mlxsw_sp_port, 0); |
| if (err) { |
| dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to set SWID\n", |
| mlxsw_sp_port->local_port); |
| goto err_port_swid_set; |
| } |
| |
| err = mlxsw_sp_port_dev_addr_init(mlxsw_sp_port); |
| if (err) { |
| dev_err(mlxsw_sp->bus_info->dev, "Port %d: Unable to init port mac address\n", |
| mlxsw_sp_port->local_port); |
| goto err_dev_addr_init; |
| } |
| |
| netif_carrier_off(dev); |
| |
| dev->features |= NETIF_F_NETNS_LOCAL | NETIF_F_LLTX | NETIF_F_SG | |
| NETIF_F_HW_VLAN_CTAG_FILTER | NETIF_F_HW_TC; |
| dev->hw_features |= NETIF_F_HW_TC; |
| |
| dev->min_mtu = 0; |
| dev->max_mtu = ETH_MAX_MTU; |
| |
| /* Each packet needs to have a Tx header (metadata) on top all other |
| * headers. |
| */ |
| dev->needed_headroom = MLXSW_TXHDR_LEN; |
| |
| err = mlxsw_sp_port_system_port_mapping_set(mlxsw_sp_port); |
| if (err) { |
| dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to set system port mapping\n", |
| mlxsw_sp_port->local_port); |
| goto err_port_system_port_mapping_set; |
| } |
| |
| err = mlxsw_sp_port_speed_by_width_set(mlxsw_sp_port, width); |
| if (err) { |
| dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to enable speeds\n", |
| mlxsw_sp_port->local_port); |
| goto err_port_speed_by_width_set; |
| } |
| |
| err = mlxsw_sp_port_mtu_set(mlxsw_sp_port, ETH_DATA_LEN); |
| if (err) { |
| dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to set MTU\n", |
| mlxsw_sp_port->local_port); |
| goto err_port_mtu_set; |
| } |
| |
| err = mlxsw_sp_port_admin_status_set(mlxsw_sp_port, false); |
| if (err) |
| goto err_port_admin_status_set; |
| |
| err = mlxsw_sp_port_buffers_init(mlxsw_sp_port); |
| if (err) { |
| dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to initialize buffers\n", |
| mlxsw_sp_port->local_port); |
| goto err_port_buffers_init; |
| } |
| |
| err = mlxsw_sp_port_ets_init(mlxsw_sp_port); |
| if (err) { |
| dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to initialize ETS\n", |
| mlxsw_sp_port->local_port); |
| goto err_port_ets_init; |
| } |
| |
| /* ETS and buffers must be initialized before DCB. */ |
| err = mlxsw_sp_port_dcb_init(mlxsw_sp_port); |
| if (err) { |
| dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to initialize DCB\n", |
| mlxsw_sp_port->local_port); |
| goto err_port_dcb_init; |
| } |
| |
| err = mlxsw_sp_port_fids_init(mlxsw_sp_port); |
| if (err) { |
| dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to initialize FIDs\n", |
| mlxsw_sp_port->local_port); |
| goto err_port_fids_init; |
| } |
| |
| err = mlxsw_sp_tc_qdisc_init(mlxsw_sp_port); |
| if (err) { |
| dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to initialize TC qdiscs\n", |
| mlxsw_sp_port->local_port); |
| goto err_port_qdiscs_init; |
| } |
| |
| mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_get(mlxsw_sp_port, 1); |
| if (IS_ERR(mlxsw_sp_port_vlan)) { |
| dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to create VID 1\n", |
| mlxsw_sp_port->local_port); |
| err = PTR_ERR(mlxsw_sp_port_vlan); |
| goto err_port_vlan_get; |
| } |
| |
| mlxsw_sp_port_switchdev_init(mlxsw_sp_port); |
| mlxsw_sp->ports[local_port] = mlxsw_sp_port; |
| err = register_netdev(dev); |
| if (err) { |
| dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to register netdev\n", |
| mlxsw_sp_port->local_port); |
| goto err_register_netdev; |
| } |
| |
| mlxsw_core_port_eth_set(mlxsw_sp->core, mlxsw_sp_port->local_port, |
| mlxsw_sp_port, dev, module + 1, |
| mlxsw_sp_port->split, lane / width); |
| mlxsw_core_schedule_dw(&mlxsw_sp_port->periodic_hw_stats.update_dw, 0); |
| return 0; |
| |
| err_register_netdev: |
| mlxsw_sp->ports[local_port] = NULL; |
| mlxsw_sp_port_switchdev_fini(mlxsw_sp_port); |
| mlxsw_sp_port_vlan_put(mlxsw_sp_port_vlan); |
| err_port_vlan_get: |
| mlxsw_sp_tc_qdisc_fini(mlxsw_sp_port); |
| err_port_qdiscs_init: |
| mlxsw_sp_port_fids_fini(mlxsw_sp_port); |
| err_port_fids_init: |
| mlxsw_sp_port_dcb_fini(mlxsw_sp_port); |
| err_port_dcb_init: |
| err_port_ets_init: |
| err_port_buffers_init: |
| err_port_admin_status_set: |
| err_port_mtu_set: |
| err_port_speed_by_width_set: |
| err_port_system_port_mapping_set: |
| err_dev_addr_init: |
| mlxsw_sp_port_swid_set(mlxsw_sp_port, MLXSW_PORT_SWID_DISABLED_PORT); |
| err_port_swid_set: |
| mlxsw_sp_port_module_unmap(mlxsw_sp_port); |
| err_port_module_map: |
| kfree(mlxsw_sp_port->sample); |
| err_alloc_sample: |
| free_percpu(mlxsw_sp_port->pcpu_stats); |
| err_alloc_stats: |
| free_netdev(dev); |
| err_alloc_etherdev: |
| mlxsw_core_port_fini(mlxsw_sp->core, local_port); |
| return err; |
| } |
| |
| static void mlxsw_sp_port_remove(struct mlxsw_sp *mlxsw_sp, u8 local_port) |
| { |
| struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp->ports[local_port]; |
| |
| cancel_delayed_work_sync(&mlxsw_sp_port->periodic_hw_stats.update_dw); |
| mlxsw_core_port_clear(mlxsw_sp->core, local_port, mlxsw_sp); |
| unregister_netdev(mlxsw_sp_port->dev); /* This calls ndo_stop */ |
| mlxsw_sp->ports[local_port] = NULL; |
| mlxsw_sp_port_switchdev_fini(mlxsw_sp_port); |
| mlxsw_sp_port_vlan_flush(mlxsw_sp_port); |
| mlxsw_sp_tc_qdisc_fini(mlxsw_sp_port); |
| mlxsw_sp_port_fids_fini(mlxsw_sp_port); |
| mlxsw_sp_port_dcb_fini(mlxsw_sp_port); |
| mlxsw_sp_port_swid_set(mlxsw_sp_port, MLXSW_PORT_SWID_DISABLED_PORT); |
| mlxsw_sp_port_module_unmap(mlxsw_sp_port); |
| kfree(mlxsw_sp_port->sample); |
| free_percpu(mlxsw_sp_port->pcpu_stats); |
| WARN_ON_ONCE(!list_empty(&mlxsw_sp_port->vlans_list)); |
| free_netdev(mlxsw_sp_port->dev); |
| mlxsw_core_port_fini(mlxsw_sp->core, local_port); |
| } |
| |
| static bool mlxsw_sp_port_created(struct mlxsw_sp *mlxsw_sp, u8 local_port) |
| { |
| return mlxsw_sp->ports[local_port] != NULL; |
| } |
| |
| static void mlxsw_sp_ports_remove(struct mlxsw_sp *mlxsw_sp) |
| { |
| int i; |
| |
| for (i = 1; i < mlxsw_core_max_ports(mlxsw_sp->core); i++) |
| if (mlxsw_sp_port_created(mlxsw_sp, i)) |
| mlxsw_sp_port_remove(mlxsw_sp, i); |
| kfree(mlxsw_sp->port_to_module); |
| kfree(mlxsw_sp->ports); |
| } |
| |
| static int mlxsw_sp_ports_create(struct mlxsw_sp *mlxsw_sp) |
| { |
| unsigned int max_ports = mlxsw_core_max_ports(mlxsw_sp->core); |
| u8 module, width, lane; |
| size_t alloc_size; |
| int i; |
| int err; |
| |
| alloc_size = sizeof(struct mlxsw_sp_port *) * max_ports; |
| mlxsw_sp->ports = kzalloc(alloc_size, GFP_KERNEL); |
| if (!mlxsw_sp->ports) |
| return -ENOMEM; |
| |
| mlxsw_sp->port_to_module = kmalloc_array(max_ports, sizeof(int), |
| GFP_KERNEL); |
| if (!mlxsw_sp->port_to_module) { |
| err = -ENOMEM; |
| goto err_port_to_module_alloc; |
| } |
| |
| for (i = 1; i < max_ports; i++) { |
| /* Mark as invalid */ |
| mlxsw_sp->port_to_module[i] = -1; |
| |
| err = mlxsw_sp_port_module_info_get(mlxsw_sp, i, &module, |
| &width, &lane); |
| if (err) |
| goto err_port_module_info_get; |
| if (!width) |
| continue; |
| mlxsw_sp->port_to_module[i] = module; |
| err = mlxsw_sp_port_create(mlxsw_sp, i, false, |
| module, width, lane); |
| if (err) |
| goto err_port_create; |
| } |
| return 0; |
| |
| err_port_create: |
| err_port_module_info_get: |
| for (i--; i >= 1; i--) |
| if (mlxsw_sp_port_created(mlxsw_sp, i)) |
| mlxsw_sp_port_remove(mlxsw_sp, i); |
| kfree(mlxsw_sp->port_to_module); |
| err_port_to_module_alloc: |
| kfree(mlxsw_sp->ports); |
| return err; |
| } |
| |
| static u8 mlxsw_sp_cluster_base_port_get(u8 local_port) |
| { |
| u8 offset = (local_port - 1) % MLXSW_SP_PORTS_PER_CLUSTER_MAX; |
| |
| return local_port - offset; |
| } |
| |
| static int mlxsw_sp_port_split_create(struct mlxsw_sp *mlxsw_sp, u8 base_port, |
| u8 module, unsigned int count) |
| { |
| u8 width = MLXSW_PORT_MODULE_MAX_WIDTH / count; |
| int err, i; |
| |
| for (i = 0; i < count; i++) { |
| err = mlxsw_sp_port_create(mlxsw_sp, base_port + i, true, |
| module, width, i * width); |
| if (err) |
| goto err_port_create; |
| } |
| |
| return 0; |
| |
| err_port_create: |
| for (i--; i >= 0; i--) |
| if (mlxsw_sp_port_created(mlxsw_sp, base_port + i)) |
| mlxsw_sp_port_remove(mlxsw_sp, base_port + i); |
| return err; |
| } |
| |
| static void mlxsw_sp_port_unsplit_create(struct mlxsw_sp *mlxsw_sp, |
| u8 base_port, unsigned int count) |
| { |
| u8 local_port, module, width = MLXSW_PORT_MODULE_MAX_WIDTH; |
| int i; |
| |
| /* Split by four means we need to re-create two ports, otherwise |
| * only one. |
| */ |
| count = count / 2; |
| |
| for (i = 0; i < count; i++) { |
| local_port = base_port + i * 2; |
| if (mlxsw_sp->port_to_module[local_port] < 0) |
| continue; |
| module = mlxsw_sp->port_to_module[local_port]; |
| |
| mlxsw_sp_port_create(mlxsw_sp, local_port, false, module, |
| width, 0); |
| } |
| } |
| |
| static int mlxsw_sp_port_split(struct mlxsw_core *mlxsw_core, u8 local_port, |
| unsigned int count, |
| struct netlink_ext_ack *extack) |
| { |
| struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core); |
| struct mlxsw_sp_port *mlxsw_sp_port; |
| u8 module, cur_width, base_port; |
| int i; |
| int err; |
| |
| mlxsw_sp_port = mlxsw_sp->ports[local_port]; |
| if (!mlxsw_sp_port) { |
| dev_err(mlxsw_sp->bus_info->dev, "Port number \"%d\" does not exist\n", |
| local_port); |
| NL_SET_ERR_MSG_MOD(extack, "Port number does not exist"); |
| return -EINVAL; |
| } |
| |
| module = mlxsw_sp_port->mapping.module; |
| cur_width = mlxsw_sp_port->mapping.width; |
| |
| if (count != 2 && count != 4) { |
| netdev_err(mlxsw_sp_port->dev, "Port can only be split into 2 or 4 ports\n"); |
| NL_SET_ERR_MSG_MOD(extack, "Port can only be split into 2 or 4 ports"); |
| return -EINVAL; |
| } |
| |
| if (cur_width != MLXSW_PORT_MODULE_MAX_WIDTH) { |
| netdev_err(mlxsw_sp_port->dev, "Port cannot be split further\n"); |
| NL_SET_ERR_MSG_MOD(extack, "Port cannot be split further"); |
| return -EINVAL; |
| } |
| |
| /* Make sure we have enough slave (even) ports for the split. */ |
| if (count == 2) { |
| base_port = local_port; |
| if (mlxsw_sp->ports[base_port + 1]) { |
| netdev_err(mlxsw_sp_port->dev, "Invalid split configuration\n"); |
| NL_SET_ERR_MSG_MOD(extack, "Invalid split configuration"); |
| return -EINVAL; |
| } |
| } else { |
| base_port = mlxsw_sp_cluster_base_port_get(local_port); |
| if (mlxsw_sp->ports[base_port + 1] || |
| mlxsw_sp->ports[base_port + 3]) { |
| netdev_err(mlxsw_sp_port->dev, "Invalid split configuration\n"); |
| NL_SET_ERR_MSG_MOD(extack, "Invalid split configuration"); |
| return -EINVAL; |
| } |
| } |
| |
| for (i = 0; i < count; i++) |
| if (mlxsw_sp_port_created(mlxsw_sp, base_port + i)) |
| mlxsw_sp_port_remove(mlxsw_sp, base_port + i); |
| |
| err = mlxsw_sp_port_split_create(mlxsw_sp, base_port, module, count); |
| if (err) { |
| dev_err(mlxsw_sp->bus_info->dev, "Failed to create split ports\n"); |
| goto err_port_split_create; |
| } |
| |
| return 0; |
| |
| err_port_split_create: |
| mlxsw_sp_port_unsplit_create(mlxsw_sp, base_port, count); |
| return err; |
| } |
| |
| static int mlxsw_sp_port_unsplit(struct mlxsw_core *mlxsw_core, u8 local_port, |
| struct netlink_ext_ack *extack) |
| { |
| struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core); |
| struct mlxsw_sp_port *mlxsw_sp_port; |
| u8 cur_width, base_port; |
| unsigned int count; |
| int i; |
| |
| mlxsw_sp_port = mlxsw_sp->ports[local_port]; |
| if (!mlxsw_sp_port) { |
| dev_err(mlxsw_sp->bus_info->dev, "Port number \"%d\" does not exist\n", |
| local_port); |
| NL_SET_ERR_MSG_MOD(extack, "Port number does not exist"); |
| return -EINVAL; |
| } |
| |
| if (!mlxsw_sp_port->split) { |
| netdev_err(mlxsw_sp_port->dev, "Port was not split\n"); |
| NL_SET_ERR_MSG_MOD(extack, "Port was not split"); |
| return -EINVAL; |
| } |
| |
| cur_width = mlxsw_sp_port->mapping.width; |
| count = cur_width == 1 ? 4 : 2; |
| |
| base_port = mlxsw_sp_cluster_base_port_get(local_port); |
| |
| /* Determine which ports to remove. */ |
| if (count == 2 && local_port >= base_port + 2) |
| base_port = base_port + 2; |
| |
| for (i = 0; i < count; i++) |
| if (mlxsw_sp_port_created(mlxsw_sp, base_port + i)) |
| mlxsw_sp_port_remove(mlxsw_sp, base_port + i); |
| |
| mlxsw_sp_port_unsplit_create(mlxsw_sp, base_port, count); |
| |
| return 0; |
| } |
| |
| static void mlxsw_sp_pude_event_func(const struct mlxsw_reg_info *reg, |
| char *pude_pl, void *priv) |
| { |
| struct mlxsw_sp *mlxsw_sp = priv; |
| struct mlxsw_sp_port *mlxsw_sp_port; |
| enum mlxsw_reg_pude_oper_status status; |
| u8 local_port; |
| |
| local_port = mlxsw_reg_pude_local_port_get(pude_pl); |
| mlxsw_sp_port = mlxsw_sp->ports[local_port]; |
| if (!mlxsw_sp_port) |
| return; |
| |
| status = mlxsw_reg_pude_oper_status_get(pude_pl); |
| if (status == MLXSW_PORT_OPER_STATUS_UP) { |
| netdev_info(mlxsw_sp_port->dev, "link up\n"); |
| netif_carrier_on(mlxsw_sp_port->dev); |
| } else { |
| netdev_info(mlxsw_sp_port->dev, "link down\n"); |
| netif_carrier_off(mlxsw_sp_port->dev); |
| } |
| } |
| |
| static void mlxsw_sp_rx_listener_no_mark_func(struct sk_buff *skb, |
| u8 local_port, void *priv) |
| { |
| struct mlxsw_sp *mlxsw_sp = priv; |
| struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp->ports[local_port]; |
| struct mlxsw_sp_port_pcpu_stats *pcpu_stats; |
| |
| if (unlikely(!mlxsw_sp_port)) { |
| dev_warn_ratelimited(mlxsw_sp->bus_info->dev, "Port %d: skb received for non-existent port\n", |
| local_port); |
| return; |
| } |
| |
| skb->dev = mlxsw_sp_port->dev; |
| |
| pcpu_stats = this_cpu_ptr(mlxsw_sp_port->pcpu_stats); |
| u64_stats_update_begin(&pcpu_stats->syncp); |
| pcpu_stats->rx_packets++; |
| pcpu_stats->rx_bytes += skb->len; |
| u64_stats_update_end(&pcpu_stats->syncp); |
| |
| skb->protocol = eth_type_trans(skb, skb->dev); |
| netif_receive_skb(skb); |
| } |
| |
| static void mlxsw_sp_rx_listener_mark_func(struct sk_buff *skb, u8 local_port, |
| void *priv) |
| { |
| skb->offload_fwd_mark = 1; |
| return mlxsw_sp_rx_listener_no_mark_func(skb, local_port, priv); |
| } |
| |
| static void mlxsw_sp_rx_listener_mr_mark_func(struct sk_buff *skb, |
| u8 local_port, void *priv) |
| { |
| skb->offload_mr_fwd_mark = 1; |
| skb->offload_fwd_mark = 1; |
| return mlxsw_sp_rx_listener_no_mark_func(skb, local_port, priv); |
| } |
| |
| static void mlxsw_sp_rx_listener_sample_func(struct sk_buff *skb, u8 local_port, |
| void *priv) |
| { |
| struct mlxsw_sp *mlxsw_sp = priv; |
| struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp->ports[local_port]; |
| struct psample_group *psample_group; |
| u32 size; |
| |
| if (unlikely(!mlxsw_sp_port)) { |
| dev_warn_ratelimited(mlxsw_sp->bus_info->dev, "Port %d: sample skb received for non-existent port\n", |
| local_port); |
| goto out; |
| } |
| if (unlikely(!mlxsw_sp_port->sample)) { |
| dev_warn_ratelimited(mlxsw_sp->bus_info->dev, "Port %d: sample skb received on unsupported port\n", |
| local_port); |
| goto out; |
| } |
| |
| size = mlxsw_sp_port->sample->truncate ? |
| mlxsw_sp_port->sample->trunc_size : skb->len; |
| |
| rcu_read_lock(); |
| psample_group = rcu_dereference(mlxsw_sp_port->sample->psample_group); |
| if (!psample_group) |
| goto out_unlock; |
| psample_sample_packet(psample_group, skb, size, |
| mlxsw_sp_port->dev->ifindex, 0, |
| mlxsw_sp_port->sample->rate); |
| out_unlock: |
| rcu_read_unlock(); |
| out: |
| consume_skb(skb); |
| } |
| |
| #define MLXSW_SP_RXL_NO_MARK(_trap_id, _action, _trap_group, _is_ctrl) \ |
| MLXSW_RXL(mlxsw_sp_rx_listener_no_mark_func, _trap_id, _action, \ |
| _is_ctrl, SP_##_trap_group, DISCARD) |
| |
| #define MLXSW_SP_RXL_MARK(_trap_id, _action, _trap_group, _is_ctrl) \ |
| MLXSW_RXL(mlxsw_sp_rx_listener_mark_func, _trap_id, _action, \ |
| _is_ctrl, SP_##_trap_group, DISCARD) |
| |
| #define MLXSW_SP_RXL_MR_MARK(_trap_id, _action, _trap_group, _is_ctrl) \ |
| MLXSW_RXL(mlxsw_sp_rx_listener_mr_mark_func, _trap_id, _action, \ |
| _is_ctrl, SP_##_trap_group, DISCARD) |
| |
| #define MLXSW_SP_EVENTL(_func, _trap_id) \ |
| MLXSW_EVENTL(_func, _trap_id, SP_EVENT) |
| |
| static const struct mlxsw_listener mlxsw_sp_listener[] = { |
| /* Events */ |
| MLXSW_SP_EVENTL(mlxsw_sp_pude_event_func, PUDE), |
| /* L2 traps */ |
| MLXSW_SP_RXL_NO_MARK(STP, TRAP_TO_CPU, STP, true), |
| MLXSW_SP_RXL_NO_MARK(LACP, TRAP_TO_CPU, LACP, true), |
| MLXSW_SP_RXL_NO_MARK(LLDP, TRAP_TO_CPU, LLDP, true), |
| MLXSW_SP_RXL_MARK(DHCP, MIRROR_TO_CPU, DHCP, false), |
| MLXSW_SP_RXL_MARK(IGMP_QUERY, MIRROR_TO_CPU, IGMP, false), |
| MLXSW_SP_RXL_NO_MARK(IGMP_V1_REPORT, TRAP_TO_CPU, IGMP, false), |
| MLXSW_SP_RXL_NO_MARK(IGMP_V2_REPORT, TRAP_TO_CPU, IGMP, false), |
| MLXSW_SP_RXL_NO_MARK(IGMP_V2_LEAVE, TRAP_TO_CPU, IGMP, false), |
| MLXSW_SP_RXL_NO_MARK(IGMP_V3_REPORT, TRAP_TO_CPU, IGMP, false), |
| MLXSW_SP_RXL_MARK(ARPBC, MIRROR_TO_CPU, ARP, false), |
| MLXSW_SP_RXL_MARK(ARPUC, MIRROR_TO_CPU, ARP, false), |
| MLXSW_SP_RXL_NO_MARK(FID_MISS, TRAP_TO_CPU, IP2ME, false), |
| MLXSW_SP_RXL_MARK(IPV6_MLDV12_LISTENER_QUERY, MIRROR_TO_CPU, IPV6_MLD, |
| false), |
| MLXSW_SP_RXL_NO_MARK(IPV6_MLDV1_LISTENER_REPORT, TRAP_TO_CPU, IPV6_MLD, |
| false), |
| MLXSW_SP_RXL_NO_MARK(IPV6_MLDV1_LISTENER_DONE, TRAP_TO_CPU, IPV6_MLD, |
| false), |
| MLXSW_SP_RXL_NO_MARK(IPV6_MLDV2_LISTENER_REPORT, TRAP_TO_CPU, IPV6_MLD, |
| false), |
| /* L3 traps */ |
| MLXSW_SP_RXL_MARK(MTUERROR, TRAP_TO_CPU, ROUTER_EXP, false), |
| MLXSW_SP_RXL_MARK(TTLERROR, TRAP_TO_CPU, ROUTER_EXP, false), |
| MLXSW_SP_RXL_MARK(LBERROR, TRAP_TO_CPU, ROUTER_EXP, false), |
| MLXSW_SP_RXL_MARK(IP2ME, TRAP_TO_CPU, IP2ME, false), |
| MLXSW_SP_RXL_MARK(IPV6_UNSPECIFIED_ADDRESS, TRAP_TO_CPU, ROUTER_EXP, |
| false), |
| MLXSW_SP_RXL_MARK(IPV6_LINK_LOCAL_DEST, TRAP_TO_CPU, ROUTER_EXP, false), |
| MLXSW_SP_RXL_MARK(IPV6_LINK_LOCAL_SRC, TRAP_TO_CPU, ROUTER_EXP, false), |
| MLXSW_SP_RXL_MARK(IPV6_ALL_NODES_LINK, TRAP_TO_CPU, ROUTER_EXP, false), |
| MLXSW_SP_RXL_MARK(IPV6_ALL_ROUTERS_LINK, TRAP_TO_CPU, ROUTER_EXP, |
| false), |
| MLXSW_SP_RXL_MARK(IPV4_OSPF, TRAP_TO_CPU, OSPF, false), |
| MLXSW_SP_RXL_MARK(IPV6_OSPF, TRAP_TO_CPU, OSPF, false), |
| MLXSW_SP_RXL_MARK(IPV6_DHCP, TRAP_TO_CPU, DHCP, false), |
| MLXSW_SP_RXL_MARK(RTR_INGRESS0, TRAP_TO_CPU, REMOTE_ROUTE, false), |
| MLXSW_SP_RXL_MARK(IPV4_BGP, TRAP_TO_CPU, BGP, false), |
| MLXSW_SP_RXL_MARK(IPV6_BGP, TRAP_TO_CPU, BGP, false), |
| MLXSW_SP_RXL_MARK(L3_IPV6_ROUTER_SOLICITATION, TRAP_TO_CPU, IPV6_ND, |
| false), |
| MLXSW_SP_RXL_MARK(L3_IPV6_ROUTER_ADVERTISMENT, TRAP_TO_CPU, IPV6_ND, |
| false), |
| MLXSW_SP_RXL_MARK(L3_IPV6_NEIGHBOR_SOLICITATION, TRAP_TO_CPU, IPV6_ND, |
| false), |
| MLXSW_SP_RXL_MARK(L3_IPV6_NEIGHBOR_ADVERTISMENT, TRAP_TO_CPU, IPV6_ND, |
| false), |
| MLXSW_SP_RXL_MARK(L3_IPV6_REDIRECTION, TRAP_TO_CPU, IPV6_ND, false), |
| MLXSW_SP_RXL_MARK(IPV6_MC_LINK_LOCAL_DEST, TRAP_TO_CPU, ROUTER_EXP, |
| false), |
| MLXSW_SP_RXL_MARK(HOST_MISS_IPV4, TRAP_TO_CPU, HOST_MISS, false), |
| MLXSW_SP_RXL_MARK(HOST_MISS_IPV6, TRAP_TO_CPU, HOST_MISS, false), |
| MLXSW_SP_RXL_MARK(ROUTER_ALERT_IPV4, TRAP_TO_CPU, ROUTER_EXP, false), |
| MLXSW_SP_RXL_MARK(ROUTER_ALERT_IPV6, TRAP_TO_CPU, ROUTER_EXP, false), |
| MLXSW_SP_RXL_MARK(IPIP_DECAP_ERROR, TRAP_TO_CPU, ROUTER_EXP, false), |
| /* PKT Sample trap */ |
| MLXSW_RXL(mlxsw_sp_rx_listener_sample_func, PKT_SAMPLE, MIRROR_TO_CPU, |
| false, SP_IP2ME, DISCARD), |
| /* ACL trap */ |
| MLXSW_SP_RXL_NO_MARK(ACL0, TRAP_TO_CPU, IP2ME, false), |
| /* Multicast Router Traps */ |
| MLXSW_SP_RXL_MARK(IPV4_PIM, TRAP_TO_CPU, PIM, false), |
| MLXSW_SP_RXL_MARK(IPV6_PIM, TRAP_TO_CPU, PIM, false), |
| MLXSW_SP_RXL_MARK(RPF, TRAP_TO_CPU, RPF, false), |
| MLXSW_SP_RXL_MARK(ACL1, TRAP_TO_CPU, MULTICAST, false), |
| MLXSW_SP_RXL_MR_MARK(ACL2, TRAP_TO_CPU, MULTICAST, false), |
| }; |
| |
| static int mlxsw_sp_cpu_policers_set(struct mlxsw_core *mlxsw_core) |
| { |
| char qpcr_pl[MLXSW_REG_QPCR_LEN]; |
| enum mlxsw_reg_qpcr_ir_units ir_units; |
| int max_cpu_policers; |
| bool is_bytes; |
| u8 burst_size; |
| u32 rate; |
| int i, err; |
| |
| if (!MLXSW_CORE_RES_VALID(mlxsw_core, MAX_CPU_POLICERS)) |
| return -EIO; |
| |
| max_cpu_policers = MLXSW_CORE_RES_GET(mlxsw_core, MAX_CPU_POLICERS); |
| |
| ir_units = MLXSW_REG_QPCR_IR_UNITS_M; |
| for (i = 0; i < max_cpu_policers; i++) { |
| is_bytes = false; |
| switch (i) { |
| case MLXSW_REG_HTGT_TRAP_GROUP_SP_STP: |
| case MLXSW_REG_HTGT_TRAP_GROUP_SP_LACP: |
| case MLXSW_REG_HTGT_TRAP_GROUP_SP_LLDP: |
| case MLXSW_REG_HTGT_TRAP_GROUP_SP_OSPF: |
| case MLXSW_REG_HTGT_TRAP_GROUP_SP_PIM: |
| case MLXSW_REG_HTGT_TRAP_GROUP_SP_RPF: |
| rate = 128; |
| burst_size = 7; |
| break; |
| case MLXSW_REG_HTGT_TRAP_GROUP_SP_IGMP: |
| case MLXSW_REG_HTGT_TRAP_GROUP_SP_IPV6_MLD: |
| rate = 16 * 1024; |
| burst_size = 10; |
| break; |
| case MLXSW_REG_HTGT_TRAP_GROUP_SP_BGP: |
| case MLXSW_REG_HTGT_TRAP_GROUP_SP_ARP: |
| case MLXSW_REG_HTGT_TRAP_GROUP_SP_DHCP: |
| case MLXSW_REG_HTGT_TRAP_GROUP_SP_HOST_MISS: |
| case MLXSW_REG_HTGT_TRAP_GROUP_SP_ROUTER_EXP: |
| case MLXSW_REG_HTGT_TRAP_GROUP_SP_REMOTE_ROUTE: |
| case MLXSW_REG_HTGT_TRAP_GROUP_SP_IPV6_ND: |
| case MLXSW_REG_HTGT_TRAP_GROUP_SP_MULTICAST: |
| rate = 1024; |
| burst_size = 7; |
| break; |
| case MLXSW_REG_HTGT_TRAP_GROUP_SP_IP2ME: |
| is_bytes = true; |
| rate = 4 * 1024; |
| burst_size = 4; |
| break; |
| default: |
| continue; |
| } |
| |
| mlxsw_reg_qpcr_pack(qpcr_pl, i, ir_units, is_bytes, rate, |
| burst_size); |
| err = mlxsw_reg_write(mlxsw_core, MLXSW_REG(qpcr), qpcr_pl); |
| if (err) |
| return err; |
| } |
| |
| return 0; |
| } |
| |
| static int mlxsw_sp_trap_groups_set(struct mlxsw_core *mlxsw_core) |
| { |
| char htgt_pl[MLXSW_REG_HTGT_LEN]; |
| enum mlxsw_reg_htgt_trap_group i; |
| int max_cpu_policers; |
| int max_trap_groups; |
| u8 priority, tc; |
| u16 policer_id; |
| int err; |
| |
| if (!MLXSW_CORE_RES_VALID(mlxsw_core, MAX_TRAP_GROUPS)) |
| return -EIO; |
| |
| max_trap_groups = MLXSW_CORE_RES_GET(mlxsw_core, MAX_TRAP_GROUPS); |
| max_cpu_policers = MLXSW_CORE_RES_GET(mlxsw_core, MAX_CPU_POLICERS); |
| |
| for (i = 0; i < max_trap_groups; i++) { |
| policer_id = i; |
| switch (i) { |
| case MLXSW_REG_HTGT_TRAP_GROUP_SP_STP: |
| case MLXSW_REG_HTGT_TRAP_GROUP_SP_LACP: |
| case MLXSW_REG_HTGT_TRAP_GROUP_SP_LLDP: |
| case MLXSW_REG_HTGT_TRAP_GROUP_SP_OSPF: |
| case MLXSW_REG_HTGT_TRAP_GROUP_SP_PIM: |
| priority = 5; |
| tc = 5; |
| break; |
| case MLXSW_REG_HTGT_TRAP_GROUP_SP_BGP: |
| case MLXSW_REG_HTGT_TRAP_GROUP_SP_DHCP: |
| priority = 4; |
| tc = 4; |
| break; |
| case MLXSW_REG_HTGT_TRAP_GROUP_SP_IGMP: |
| case MLXSW_REG_HTGT_TRAP_GROUP_SP_IP2ME: |
| case MLXSW_REG_HTGT_TRAP_GROUP_SP_IPV6_MLD: |
| priority = 3; |
| tc = 3; |
| break; |
| case MLXSW_REG_HTGT_TRAP_GROUP_SP_ARP: |
| case MLXSW_REG_HTGT_TRAP_GROUP_SP_IPV6_ND: |
| case MLXSW_REG_HTGT_TRAP_GROUP_SP_RPF: |
| priority = 2; |
| tc = 2; |
| break; |
| case MLXSW_REG_HTGT_TRAP_GROUP_SP_HOST_MISS: |
| case MLXSW_REG_HTGT_TRAP_GROUP_SP_ROUTER_EXP: |
| case MLXSW_REG_HTGT_TRAP_GROUP_SP_REMOTE_ROUTE: |
| case MLXSW_REG_HTGT_TRAP_GROUP_SP_MULTICAST: |
| priority = 1; |
| tc = 1; |
| break; |
| case MLXSW_REG_HTGT_TRAP_GROUP_SP_EVENT: |
| priority = MLXSW_REG_HTGT_DEFAULT_PRIORITY; |
| tc = MLXSW_REG_HTGT_DEFAULT_TC; |
| policer_id = MLXSW_REG_HTGT_INVALID_POLICER; |
| break; |
| default: |
| continue; |
| } |
| |
| if (max_cpu_policers <= policer_id && |
| policer_id != MLXSW_REG_HTGT_INVALID_POLICER) |
| return -EIO; |
| |
| mlxsw_reg_htgt_pack(htgt_pl, i, policer_id, priority, tc); |
| err = mlxsw_reg_write(mlxsw_core, MLXSW_REG(htgt), htgt_pl); |
| if (err) |
| return err; |
| } |
| |
| return 0; |
| } |
| |
| static int mlxsw_sp_traps_init(struct mlxsw_sp *mlxsw_sp) |
| { |
| int i; |
| int err; |
| |
| err = mlxsw_sp_cpu_policers_set(mlxsw_sp->core); |
| if (err) |
| return err; |
| |
| err = mlxsw_sp_trap_groups_set(mlxsw_sp->core); |
| if (err) |
| return err; |
| |
| for (i = 0; i < ARRAY_SIZE(mlxsw_sp_listener); i++) { |
| err = mlxsw_core_trap_register(mlxsw_sp->core, |
| &mlxsw_sp_listener[i], |
| mlxsw_sp); |
| if (err) |
| goto err_listener_register; |
| |
| } |
| return 0; |
| |
| err_listener_register: |
| for (i--; i >= 0; i--) { |
| mlxsw_core_trap_unregister(mlxsw_sp->core, |
| &mlxsw_sp_listener[i], |
| mlxsw_sp); |
| } |
| return err; |
| } |
| |
| static void mlxsw_sp_traps_fini(struct mlxsw_sp *mlxsw_sp) |
| { |
| int i; |
| |
| for (i = 0; i < ARRAY_SIZE(mlxsw_sp_listener); i++) { |
| mlxsw_core_trap_unregister(mlxsw_sp->core, |
| &mlxsw_sp_listener[i], |
| mlxsw_sp); |
| } |
| } |
| |
| static int mlxsw_sp_lag_init(struct mlxsw_sp *mlxsw_sp) |
| { |
| char slcr_pl[MLXSW_REG_SLCR_LEN]; |
| int err; |
| |
| mlxsw_reg_slcr_pack(slcr_pl, MLXSW_REG_SLCR_LAG_HASH_SMAC | |
| MLXSW_REG_SLCR_LAG_HASH_DMAC | |
| MLXSW_REG_SLCR_LAG_HASH_ETHERTYPE | |
| MLXSW_REG_SLCR_LAG_HASH_VLANID | |
| MLXSW_REG_SLCR_LAG_HASH_SIP | |
| MLXSW_REG_SLCR_LAG_HASH_DIP | |
| MLXSW_REG_SLCR_LAG_HASH_SPORT | |
| MLXSW_REG_SLCR_LAG_HASH_DPORT | |
| MLXSW_REG_SLCR_LAG_HASH_IPPROTO); |
| err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcr), slcr_pl); |
| if (err) |
| return err; |
| |
| if (!MLXSW_CORE_RES_VALID(mlxsw_sp->core, MAX_LAG) || |
| !MLXSW_CORE_RES_VALID(mlxsw_sp->core, MAX_LAG_MEMBERS)) |
| return -EIO; |
| |
| mlxsw_sp->lags = kcalloc(MLXSW_CORE_RES_GET(mlxsw_sp->core, MAX_LAG), |
| sizeof(struct mlxsw_sp_upper), |
| GFP_KERNEL); |
| if (!mlxsw_sp->lags) |
| return -ENOMEM; |
| |
| return 0; |
| } |
| |
| static void mlxsw_sp_lag_fini(struct mlxsw_sp *mlxsw_sp) |
| { |
| kfree(mlxsw_sp->lags); |
| } |
| |
| static int mlxsw_sp_basic_trap_groups_set(struct mlxsw_core *mlxsw_core) |
| { |
| char htgt_pl[MLXSW_REG_HTGT_LEN]; |
| |
| mlxsw_reg_htgt_pack(htgt_pl, MLXSW_REG_HTGT_TRAP_GROUP_EMAD, |
| MLXSW_REG_HTGT_INVALID_POLICER, |
| MLXSW_REG_HTGT_DEFAULT_PRIORITY, |
| MLXSW_REG_HTGT_DEFAULT_TC); |
| return mlxsw_reg_write(mlxsw_core, MLXSW_REG(htgt), htgt_pl); |
| } |
| |
| static int mlxsw_sp_netdevice_event(struct notifier_block *unused, |
| unsigned long event, void *ptr); |
| |
| static int mlxsw_sp_init(struct mlxsw_core *mlxsw_core, |
| const struct mlxsw_bus_info *mlxsw_bus_info) |
| { |
| struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core); |
| int err; |
| |
| mlxsw_sp->core = mlxsw_core; |
| mlxsw_sp->bus_info = mlxsw_bus_info; |
| |
| err = mlxsw_sp_fw_rev_validate(mlxsw_sp); |
| if (err) { |
| dev_err(mlxsw_sp->bus_info->dev, "Could not upgrade firmware\n"); |
| return err; |
| } |
| |
| err = mlxsw_sp_base_mac_get(mlxsw_sp); |
| if (err) { |
| dev_err(mlxsw_sp->bus_info->dev, "Failed to get base mac\n"); |
| return err; |
| } |
| |
| err = mlxsw_sp_kvdl_init(mlxsw_sp); |
| if (err) { |
| dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize KVDL\n"); |
| return err; |
| } |
| |
| err = mlxsw_sp_fids_init(mlxsw_sp); |
| if (err) { |
| dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize FIDs\n"); |
| goto err_fids_init; |
| } |
| |
| err = mlxsw_sp_traps_init(mlxsw_sp); |
| if (err) { |
| dev_err(mlxsw_sp->bus_info->dev, "Failed to set traps\n"); |
| goto err_traps_init; |
| } |
| |
| err = mlxsw_sp_buffers_init(mlxsw_sp); |
| if (err) { |
| dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize buffers\n"); |
| goto err_buffers_init; |
| } |
| |
| err = mlxsw_sp_lag_init(mlxsw_sp); |
| if (err) { |
| dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize LAG\n"); |
| goto err_lag_init; |
| } |
| |
| /* Initialize SPAN before router and switchdev, so that those components |
| * can call mlxsw_sp_span_respin(). |
| */ |
| err = mlxsw_sp_span_init(mlxsw_sp); |
| if (err) { |
| dev_err(mlxsw_sp->bus_info->dev, "Failed to init span system\n"); |
| goto err_span_init; |
| } |
| |
| err = mlxsw_sp_switchdev_init(mlxsw_sp); |
| if (err) { |
| dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize switchdev\n"); |
| goto err_switchdev_init; |
| } |
| |
| err = mlxsw_sp_counter_pool_init(mlxsw_sp); |
| if (err) { |
| dev_err(mlxsw_sp->bus_info->dev, "Failed to init counter pool\n"); |
| goto err_counter_pool_init; |
| } |
| |
| err = mlxsw_sp_afa_init(mlxsw_sp); |
| if (err) { |
| dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize ACL actions\n"); |
| goto err_afa_init; |
| } |
| |
| err = mlxsw_sp_router_init(mlxsw_sp); |
| if (err) { |
| dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize router\n"); |
| goto err_router_init; |
| } |
| |
| /* Initialize netdevice notifier after router and SPAN is initialized, |
| * so that the event handler can use router structures and call SPAN |
| * respin. |
| */ |
| mlxsw_sp->netdevice_nb.notifier_call = mlxsw_sp_netdevice_event; |
| err = register_netdevice_notifier(&mlxsw_sp->netdevice_nb); |
| if (err) { |
| dev_err(mlxsw_sp->bus_info->dev, "Failed to register netdev notifier\n"); |
| goto err_netdev_notifier; |
| } |
| |
| err = mlxsw_sp_acl_init(mlxsw_sp); |
| if (err) { |
| dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize ACL\n"); |
| goto err_acl_init; |
| } |
| |
| err = mlxsw_sp_dpipe_init(mlxsw_sp); |
| if (err) { |
| dev_err(mlxsw_sp->bus_info->dev, "Failed to init pipeline debug\n"); |
| goto err_dpipe_init; |
| } |
| |
| err = mlxsw_sp_ports_create(mlxsw_sp); |
| if (err) { |
| dev_err(mlxsw_sp->bus_info->dev, "Failed to create ports\n"); |
| goto err_ports_create; |
| } |
| |
| return 0; |
| |
| err_ports_create: |
| mlxsw_sp_dpipe_fini(mlxsw_sp); |
| err_dpipe_init: |
| mlxsw_sp_acl_fini(mlxsw_sp); |
| err_acl_init: |
| unregister_netdevice_notifier(&mlxsw_sp->netdevice_nb); |
| err_netdev_notifier: |
| mlxsw_sp_router_fini(mlxsw_sp); |
| err_router_init: |
| mlxsw_sp_afa_fini(mlxsw_sp); |
| err_afa_init: |
| mlxsw_sp_counter_pool_fini(mlxsw_sp); |
| err_counter_pool_init: |
| mlxsw_sp_switchdev_fini(mlxsw_sp); |
| err_switchdev_init: |
| mlxsw_sp_span_fini(mlxsw_sp); |
| err_span_init: |
| mlxsw_sp_lag_fini(mlxsw_sp); |
| err_lag_init: |
| mlxsw_sp_buffers_fini(mlxsw_sp); |
| err_buffers_init: |
| mlxsw_sp_traps_fini(mlxsw_sp); |
| err_traps_init: |
| mlxsw_sp_fids_fini(mlxsw_sp); |
| err_fids_init: |
| mlxsw_sp_kvdl_fini(mlxsw_sp); |
| return err; |
| } |
| |
| static void mlxsw_sp_fini(struct mlxsw_core *mlxsw_core) |
| { |
| struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core); |
| |
| mlxsw_sp_ports_remove(mlxsw_sp); |
| mlxsw_sp_dpipe_fini(mlxsw_sp); |
| mlxsw_sp_acl_fini(mlxsw_sp); |
| unregister_netdevice_notifier(&mlxsw_sp->netdevice_nb); |
| mlxsw_sp_router_fini(mlxsw_sp); |
| mlxsw_sp_afa_fini(mlxsw_sp); |
| mlxsw_sp_counter_pool_fini(mlxsw_sp); |
| mlxsw_sp_switchdev_fini(mlxsw_sp); |
| mlxsw_sp_span_fini(mlxsw_sp); |
| mlxsw_sp_lag_fini(mlxsw_sp); |
| mlxsw_sp_buffers_fini(mlxsw_sp); |
| mlxsw_sp_traps_fini(mlxsw_sp); |
| mlxsw_sp_fids_fini(mlxsw_sp); |
| mlxsw_sp_kvdl_fini(mlxsw_sp); |
| } |
| |
| static const struct mlxsw_config_profile mlxsw_sp_config_profile = { |
| .used_max_mid = 1, |
| .max_mid = MLXSW_SP_MID_MAX, |
| .used_flood_tables = 1, |
| .used_flood_mode = 1, |
| .flood_mode = 3, |
| .max_fid_offset_flood_tables = 3, |
| .fid_offset_flood_table_size = VLAN_N_VID - 1, |
| .max_fid_flood_tables = 3, |
| .fid_flood_table_size = MLXSW_SP_FID_8021D_MAX, |
| .used_max_ib_mc = 1, |
| .max_ib_mc = 0, |
| .used_max_pkey = 1, |
| .max_pkey = 0, |
| .used_kvd_sizes = 1, |
| .kvd_hash_single_parts = 59, |
| .kvd_hash_double_parts = 41, |
| .kvd_linear_size = MLXSW_SP_KVD_LINEAR_SIZE, |
| .swid_config = { |
| { |
| .used_type = 1, |
| .type = MLXSW_PORT_SWID_TYPE_ETH, |
| } |
| }, |
| }; |
| |
| static void |
| mlxsw_sp_resource_size_params_prepare(struct mlxsw_core *mlxsw_core, |
| struct devlink_resource_size_params *kvd_size_params, |
| struct devlink_resource_size_params *linear_size_params, |
| struct devlink_resource_size_params *hash_double_size_params, |
| struct devlink_resource_size_params *hash_single_size_params) |
| { |
| u32 single_size_min = MLXSW_CORE_RES_GET(mlxsw_core, |
| KVD_SINGLE_MIN_SIZE); |
| u32 double_size_min = MLXSW_CORE_RES_GET(mlxsw_core, |
| KVD_DOUBLE_MIN_SIZE); |
| u32 kvd_size = MLXSW_CORE_RES_GET(mlxsw_core, KVD_SIZE); |
| u32 linear_size_min = 0; |
| |
| devlink_resource_size_params_init(kvd_size_params, kvd_size, kvd_size, |
| MLXSW_SP_KVD_GRANULARITY, |
| DEVLINK_RESOURCE_UNIT_ENTRY); |
| devlink_resource_size_params_init(linear_size_params, linear_size_min, |
| kvd_size - single_size_min - |
| double_size_min, |
| MLXSW_SP_KVD_GRANULARITY, |
| DEVLINK_RESOURCE_UNIT_ENTRY); |
| devlink_resource_size_params_init(hash_double_size_params, |
| double_size_min, |
| kvd_size - single_size_min - |
| linear_size_min, |
| MLXSW_SP_KVD_GRANULARITY, |
| DEVLINK_RESOURCE_UNIT_ENTRY); |
| devlink_resource_size_params_init(hash_single_size_params, |
| single_size_min, |
| kvd_size - double_size_min - |
| linear_size_min, |
| MLXSW_SP_KVD_GRANULARITY, |
| DEVLINK_RESOURCE_UNIT_ENTRY); |
| } |
| |
| static int mlxsw_sp_resources_register(struct mlxsw_core *mlxsw_core) |
| { |
| struct devlink *devlink = priv_to_devlink(mlxsw_core); |
| struct devlink_resource_size_params hash_single_size_params; |
| struct devlink_resource_size_params hash_double_size_params; |
| struct devlink_resource_size_params linear_size_params; |
| struct devlink_resource_size_params kvd_size_params; |
| u32 kvd_size, single_size, double_size, linear_size; |
| const struct mlxsw_config_profile *profile; |
| int err; |
| |
| profile = &mlxsw_sp_config_profile; |
| if (!MLXSW_CORE_RES_VALID(mlxsw_core, KVD_SIZE)) |
| return -EIO; |
| |
| mlxsw_sp_resource_size_params_prepare(mlxsw_core, &kvd_size_params, |
| &linear_size_params, |
| &hash_double_size_params, |
| &hash_single_size_params); |
| |
| kvd_size = MLXSW_CORE_RES_GET(mlxsw_core, KVD_SIZE); |
| err = devlink_resource_register(devlink, MLXSW_SP_RESOURCE_NAME_KVD, |
| kvd_size, MLXSW_SP_RESOURCE_KVD, |
| DEVLINK_RESOURCE_ID_PARENT_TOP, |
| &kvd_size_params); |
| if (err) |
| return err; |
| |
| linear_size = profile->kvd_linear_size; |
| err = devlink_resource_register(devlink, MLXSW_SP_RESOURCE_NAME_KVD_LINEAR, |
| linear_size, |
| MLXSW_SP_RESOURCE_KVD_LINEAR, |
| MLXSW_SP_RESOURCE_KVD, |
| &linear_size_params); |
| if (err) |
| return err; |
| |
| err = mlxsw_sp_kvdl_resources_register(mlxsw_core); |
| if (err) |
| return err; |
| |
| double_size = kvd_size - linear_size; |
| double_size *= profile->kvd_hash_double_parts; |
| double_size /= profile->kvd_hash_double_parts + |
| profile->kvd_hash_single_parts; |
| double_size = rounddown(double_size, MLXSW_SP_KVD_GRANULARITY); |
| err = devlink_resource_register(devlink, MLXSW_SP_RESOURCE_NAME_KVD_HASH_DOUBLE, |
| double_size, |
| MLXSW_SP_RESOURCE_KVD_HASH_DOUBLE, |
| MLXSW_SP_RESOURCE_KVD, |
| &hash_double_size_params); |
| if (err) |
| return err; |
| |
| single_size = kvd_size - double_size - linear_size; |
| err = devlink_resource_register(devlink, MLXSW_SP_RESOURCE_NAME_KVD_HASH_SINGLE, |
| single_size, |
| MLXSW_SP_RESOURCE_KVD_HASH_SINGLE, |
| MLXSW_SP_RESOURCE_KVD, |
| &hash_single_size_params); |
| if (err) |
| return err; |
| |
| return 0; |
| } |
| |
| static int mlxsw_sp_kvd_sizes_get(struct mlxsw_core *mlxsw_core, |
| const struct mlxsw_config_profile *profile, |
| u64 *p_single_size, u64 *p_double_size, |
| u64 *p_linear_size) |
| { |
| struct devlink *devlink = priv_to_devlink(mlxsw_core); |
| u32 double_size; |
| int err; |
| |
| if (!MLXSW_CORE_RES_VALID(mlxsw_core, KVD_SINGLE_MIN_SIZE) || |
| !MLXSW_CORE_RES_VALID(mlxsw_core, KVD_DOUBLE_MIN_SIZE)) |
| return -EIO; |
| |
| /* The hash part is what left of the kvd without the |
| * linear part. It is split to the single size and |
| * double size by the parts ratio from the profile. |
| * Both sizes must be a multiplications of the |
| * granularity from the profile. In case the user |
| * provided the sizes they are obtained via devlink. |
| */ |
| err = devlink_resource_size_get(devlink, |
| MLXSW_SP_RESOURCE_KVD_LINEAR, |
| p_linear_size); |
| if (err) |
| *p_linear_size = profile->kvd_linear_size; |
| |
| err = devlink_resource_size_get(devlink, |
| MLXSW_SP_RESOURCE_KVD_HASH_DOUBLE, |
| p_double_size); |
| if (err) { |
| double_size = MLXSW_CORE_RES_GET(mlxsw_core, KVD_SIZE) - |
| *p_linear_size; |
| double_size *= profile->kvd_hash_double_parts; |
| double_size /= profile->kvd_hash_double_parts + |
| profile->kvd_hash_single_parts; |
| *p_double_size = rounddown(double_size, |
| MLXSW_SP_KVD_GRANULARITY); |
| } |
| |
| err = devlink_resource_size_get(devlink, |
| MLXSW_SP_RESOURCE_KVD_HASH_SINGLE, |
| p_single_size); |
| if (err) |
| *p_single_size = MLXSW_CORE_RES_GET(mlxsw_core, KVD_SIZE) - |
| *p_double_size - *p_linear_size; |
| |
| /* Check results are legal. */ |
| if (*p_single_size < MLXSW_CORE_RES_GET(mlxsw_core, KVD_SINGLE_MIN_SIZE) || |
| *p_double_size < MLXSW_CORE_RES_GET(mlxsw_core, KVD_DOUBLE_MIN_SIZE) || |
| MLXSW_CORE_RES_GET(mlxsw_core, KVD_SIZE) < *p_linear_size) |
| return -EIO; |
| |
| return 0; |
| } |
| |
| static struct mlxsw_driver mlxsw_sp_driver = { |
| .kind = mlxsw_sp_driver_name, |
| .priv_size = sizeof(struct mlxsw_sp), |
| .init = mlxsw_sp_init, |
| .fini = mlxsw_sp_fini, |
| .basic_trap_groups_set = mlxsw_sp_basic_trap_groups_set, |
| .port_split = mlxsw_sp_port_split, |
| .port_unsplit = mlxsw_sp_port_unsplit, |
| .sb_pool_get = mlxsw_sp_sb_pool_get, |
| .sb_pool_set = mlxsw_sp_sb_pool_set, |
| .sb_port_pool_get = mlxsw_sp_sb_port_pool_get, |
| .sb_port_pool_set = mlxsw_sp_sb_port_pool_set, |
| .sb_tc_pool_bind_get = mlxsw_sp_sb_tc_pool_bind_get, |
| .sb_tc_pool_bind_set = mlxsw_sp_sb_tc_pool_bind_set, |
| .sb_occ_snapshot = mlxsw_sp_sb_occ_snapshot, |
| .sb_occ_max_clear = mlxsw_sp_sb_occ_max_clear, |
| .sb_occ_port_pool_get = mlxsw_sp_sb_occ_port_pool_get, |
| .sb_occ_tc_port_bind_get = mlxsw_sp_sb_occ_tc_port_bind_get, |
| .txhdr_construct = mlxsw_sp_txhdr_construct, |
| .resources_register = mlxsw_sp_resources_register, |
| .kvd_sizes_get = mlxsw_sp_kvd_sizes_get, |
| .txhdr_len = MLXSW_TXHDR_LEN, |
| .profile = &mlxsw_sp_config_profile, |
| .res_query_enabled = true, |
| }; |
| |
| bool mlxsw_sp_port_dev_check(const struct net_device *dev) |
| { |
| return dev->netdev_ops == &mlxsw_sp_port_netdev_ops; |
| } |
| |
| static int mlxsw_sp_lower_dev_walk(struct net_device *lower_dev, void *data) |
| { |
| struct mlxsw_sp_port **p_mlxsw_sp_port = data; |
| int ret = 0; |
| |
| if (mlxsw_sp_port_dev_check(lower_dev)) { |
| *p_mlxsw_sp_port = netdev_priv(lower_dev); |
| ret = 1; |
| } |
| |
| return ret; |
| } |
| |
| struct mlxsw_sp_port *mlxsw_sp_port_dev_lower_find(struct net_device *dev) |
| { |
| struct mlxsw_sp_port *mlxsw_sp_port; |
| |
| if (mlxsw_sp_port_dev_check(dev)) |
| return netdev_priv(dev); |
| |
| mlxsw_sp_port = NULL; |
| netdev_walk_all_lower_dev(dev, mlxsw_sp_lower_dev_walk, &mlxsw_sp_port); |
| |
| return mlxsw_sp_port; |
| } |
| |
| struct mlxsw_sp *mlxsw_sp_lower_get(struct net_device *dev) |
| { |
| struct mlxsw_sp_port *mlxsw_sp_port; |
| |
| mlxsw_sp_port = mlxsw_sp_port_dev_lower_find(dev); |
| return mlxsw_sp_port ? mlxsw_sp_port->mlxsw_sp : NULL; |
| } |
| |
| struct mlxsw_sp_port *mlxsw_sp_port_dev_lower_find_rcu(struct net_device *dev) |
| { |
| struct mlxsw_sp_port *mlxsw_sp_port; |
| |
| if (mlxsw_sp_port_dev_check(dev)) |
| return netdev_priv(dev); |
| |
| mlxsw_sp_port = NULL; |
| netdev_walk_all_lower_dev_rcu(dev, mlxsw_sp_lower_dev_walk, |
| &mlxsw_sp_port); |
| |
| return mlxsw_sp_port; |
| } |
| |
| struct mlxsw_sp_port *mlxsw_sp_port_lower_dev_hold(struct net_device *dev) |
| { |
| struct mlxsw_sp_port *mlxsw_sp_port; |
| |
| rcu_read_lock(); |
| mlxsw_sp_port = mlxsw_sp_port_dev_lower_find_rcu(dev); |
| if (mlxsw_sp_port) |
| dev_hold(mlxsw_sp_port->dev); |
| rcu_read_unlock(); |
| return mlxsw_sp_port; |
| } |
| |
| void mlxsw_sp_port_dev_put(struct mlxsw_sp_port *mlxsw_sp_port) |
| { |
| dev_put(mlxsw_sp_port->dev); |
| } |
| |
| static int mlxsw_sp_lag_create(struct mlxsw_sp *mlxsw_sp, u16 lag_id) |
| { |
| char sldr_pl[MLXSW_REG_SLDR_LEN]; |
| |
| mlxsw_reg_sldr_lag_create_pack(sldr_pl, lag_id); |
| return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sldr), sldr_pl); |
| } |
| |
| static int mlxsw_sp_lag_destroy(struct mlxsw_sp *mlxsw_sp, u16 lag_id) |
| { |
| char sldr_pl[MLXSW_REG_SLDR_LEN]; |
| |
| mlxsw_reg_sldr_lag_destroy_pack(sldr_pl, lag_id); |
| return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sldr), sldr_pl); |
| } |
| |
| static int mlxsw_sp_lag_col_port_add(struct mlxsw_sp_port *mlxsw_sp_port, |
| u16 lag_id, u8 port_index) |
| { |
| struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| char slcor_pl[MLXSW_REG_SLCOR_LEN]; |
| |
| mlxsw_reg_slcor_port_add_pack(slcor_pl, mlxsw_sp_port->local_port, |
| lag_id, port_index); |
| return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcor), slcor_pl); |
| } |
| |
| static int mlxsw_sp_lag_col_port_remove(struct mlxsw_sp_port *mlxsw_sp_port, |
| u16 lag_id) |
| { |
| struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| char slcor_pl[MLXSW_REG_SLCOR_LEN]; |
| |
| mlxsw_reg_slcor_port_remove_pack(slcor_pl, mlxsw_sp_port->local_port, |
| lag_id); |
| return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcor), slcor_pl); |
| } |
| |
| static int mlxsw_sp_lag_col_port_enable(struct mlxsw_sp_port *mlxsw_sp_port, |
| u16 lag_id) |
| { |
| struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| char slcor_pl[MLXSW_REG_SLCOR_LEN]; |
| |
| mlxsw_reg_slcor_col_enable_pack(slcor_pl, mlxsw_sp_port->local_port, |
| lag_id); |
| return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcor), slcor_pl); |
| } |
| |
| static int mlxsw_sp_lag_col_port_disable(struct mlxsw_sp_port *mlxsw_sp_port, |
| u16 lag_id) |
| { |
| struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| char slcor_pl[MLXSW_REG_SLCOR_LEN]; |
| |
| mlxsw_reg_slcor_col_disable_pack(slcor_pl, mlxsw_sp_port->local_port, |
| lag_id); |
| return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcor), slcor_pl); |
| } |
| |
| static int mlxsw_sp_lag_index_get(struct mlxsw_sp *mlxsw_sp, |
| struct net_device *lag_dev, |
| u16 *p_lag_id) |
| { |
| struct mlxsw_sp_upper *lag; |
| int free_lag_id = -1; |
| u64 max_lag; |
| int i; |
| |
| max_lag = MLXSW_CORE_RES_GET(mlxsw_sp->core, MAX_LAG); |
| for (i = 0; i < max_lag; i++) { |
| lag = mlxsw_sp_lag_get(mlxsw_sp, i); |
| if (lag->ref_count) { |
| if (lag->dev == lag_dev) { |
| *p_lag_id = i; |
| return 0; |
| } |
| } else if (free_lag_id < 0) { |
| free_lag_id = i; |
| } |
| } |
| if (free_lag_id < 0) |
| return -EBUSY; |
| *p_lag_id = free_lag_id; |
| return 0; |
| } |
| |
| static bool |
| mlxsw_sp_master_lag_check(struct mlxsw_sp *mlxsw_sp, |
| struct net_device *lag_dev, |
| struct netdev_lag_upper_info *lag_upper_info, |
| struct netlink_ext_ack *extack) |
| { |
| u16 lag_id; |
| |
| if (mlxsw_sp_lag_index_get(mlxsw_sp, lag_dev, &lag_id) != 0) { |
| NL_SET_ERR_MSG_MOD(extack, "Exceeded number of supported LAG devices"); |
| return false; |
| } |
| if (lag_upper_info->tx_type != NETDEV_LAG_TX_TYPE_HASH) { |
| NL_SET_ERR_MSG_MOD(extack, "LAG device using unsupported Tx type"); |
| return false; |
| } |
| return true; |
| } |
| |
| static int mlxsw_sp_port_lag_index_get(struct mlxsw_sp *mlxsw_sp, |
| u16 lag_id, u8 *p_port_index) |
| { |
| u64 max_lag_members; |
| int i; |
| |
| max_lag_members = MLXSW_CORE_RES_GET(mlxsw_sp->core, |
| MAX_LAG_MEMBERS); |
| for (i = 0; i < max_lag_members; i++) { |
| if (!mlxsw_sp_port_lagged_get(mlxsw_sp, lag_id, i)) { |
| *p_port_index = i; |
| return 0; |
| } |
| } |
| return -EBUSY; |
| } |
| |
| static int mlxsw_sp_port_lag_join(struct mlxsw_sp_port *mlxsw_sp_port, |
| struct net_device *lag_dev) |
| { |
| struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan; |
| struct mlxsw_sp_upper *lag; |
| u16 lag_id; |
| u8 port_index; |
| int err; |
| |
| err = mlxsw_sp_lag_index_get(mlxsw_sp, lag_dev, &lag_id); |
| if (err) |
| return err; |
| lag = mlxsw_sp_lag_get(mlxsw_sp, lag_id); |
| if (!lag->ref_count) { |
| err = mlxsw_sp_lag_create(mlxsw_sp, lag_id); |
| if (err) |
| return err; |
| lag->dev = lag_dev; |
| } |
| |
| err = mlxsw_sp_port_lag_index_get(mlxsw_sp, lag_id, &port_index); |
| if (err) |
| return err; |
| err = mlxsw_sp_lag_col_port_add(mlxsw_sp_port, lag_id, port_index); |
| if (err) |
| goto err_col_port_add; |
| err = mlxsw_sp_lag_col_port_enable(mlxsw_sp_port, lag_id); |
| if (err) |
| goto err_col_port_enable; |
| |
| mlxsw_core_lag_mapping_set(mlxsw_sp->core, lag_id, port_index, |
| mlxsw_sp_port->local_port); |
| mlxsw_sp_port->lag_id = lag_id; |
| mlxsw_sp_port->lagged = 1; |
| lag->ref_count++; |
| |
| /* Port is no longer usable as a router interface */ |
| mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_vid(mlxsw_sp_port, 1); |
| if (mlxsw_sp_port_vlan->fid) |
| mlxsw_sp_port_vlan_router_leave(mlxsw_sp_port_vlan); |
| |
| return 0; |
| |
| err_col_port_enable: |
| mlxsw_sp_lag_col_port_remove(mlxsw_sp_port, lag_id); |
| err_col_port_add: |
| if (!lag->ref_count) |
| mlxsw_sp_lag_destroy(mlxsw_sp, lag_id); |
| return err; |
| } |
| |
| static void mlxsw_sp_port_lag_leave(struct mlxsw_sp_port *mlxsw_sp_port, |
| struct net_device *lag_dev) |
| { |
| struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| u16 lag_id = mlxsw_sp_port->lag_id; |
| struct mlxsw_sp_upper *lag; |
| |
| if (!mlxsw_sp_port->lagged) |
| return; |
| lag = mlxsw_sp_lag_get(mlxsw_sp, lag_id); |
| WARN_ON(lag->ref_count == 0); |
| |
| mlxsw_sp_lag_col_port_disable(mlxsw_sp_port, lag_id); |
| mlxsw_sp_lag_col_port_remove(mlxsw_sp_port, lag_id); |
| |
| /* Any VLANs configured on the port are no longer valid */ |
| mlxsw_sp_port_vlan_flush(mlxsw_sp_port); |
| |
| if (lag->ref_count == 1) |
| mlxsw_sp_lag_destroy(mlxsw_sp, lag_id); |
| |
| mlxsw_core_lag_mapping_clear(mlxsw_sp->core, lag_id, |
| mlxsw_sp_port->local_port); |
| mlxsw_sp_port->lagged = 0; |
| lag->ref_count--; |
| |
| mlxsw_sp_port_vlan_get(mlxsw_sp_port, 1); |
| /* Make sure untagged frames are allowed to ingress */ |
| mlxsw_sp_port_pvid_set(mlxsw_sp_port, 1); |
| } |
| |
| static int mlxsw_sp_lag_dist_port_add(struct mlxsw_sp_port *mlxsw_sp_port, |
| u16 lag_id) |
| { |
| struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| char sldr_pl[MLXSW_REG_SLDR_LEN]; |
| |
| mlxsw_reg_sldr_lag_add_port_pack(sldr_pl, lag_id, |
| mlxsw_sp_port->local_port); |
| return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sldr), sldr_pl); |
| } |
| |
| static int mlxsw_sp_lag_dist_port_remove(struct mlxsw_sp_port *mlxsw_sp_port, |
| u16 lag_id) |
| { |
| struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| char sldr_pl[MLXSW_REG_SLDR_LEN]; |
| |
| mlxsw_reg_sldr_lag_remove_port_pack(sldr_pl, lag_id, |
| mlxsw_sp_port->local_port); |
| return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sldr), sldr_pl); |
| } |
| |
| static int mlxsw_sp_port_lag_tx_en_set(struct mlxsw_sp_port *mlxsw_sp_port, |
| bool lag_tx_enabled) |
| { |
| if (lag_tx_enabled) |
| return mlxsw_sp_lag_dist_port_add(mlxsw_sp_port, |
| mlxsw_sp_port->lag_id); |
| else |
| return mlxsw_sp_lag_dist_port_remove(mlxsw_sp_port, |
| mlxsw_sp_port->lag_id); |
| } |
| |
| static int mlxsw_sp_port_lag_changed(struct mlxsw_sp_port *mlxsw_sp_port, |
| struct netdev_lag_lower_state_info *info) |
| { |
| return mlxsw_sp_port_lag_tx_en_set(mlxsw_sp_port, info->tx_enabled); |
| } |
| |
| static int mlxsw_sp_port_stp_set(struct mlxsw_sp_port *mlxsw_sp_port, |
| bool enable) |
| { |
| struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| enum mlxsw_reg_spms_state spms_state; |
| char *spms_pl; |
| u16 vid; |
| int err; |
| |
| spms_state = enable ? MLXSW_REG_SPMS_STATE_FORWARDING : |
| MLXSW_REG_SPMS_STATE_DISCARDING; |
| |
| spms_pl = kmalloc(MLXSW_REG_SPMS_LEN, GFP_KERNEL); |
| if (!spms_pl) |
| return -ENOMEM; |
| mlxsw_reg_spms_pack(spms_pl, mlxsw_sp_port->local_port); |
| |
| for (vid = 0; vid < VLAN_N_VID; vid++) |
| mlxsw_reg_spms_vid_pack(spms_pl, vid, spms_state); |
| |
| err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spms), spms_pl); |
| kfree(spms_pl); |
| return err; |
| } |
| |
| static int mlxsw_sp_port_ovs_join(struct mlxsw_sp_port *mlxsw_sp_port) |
| { |
| u16 vid = 1; |
| int err; |
| |
| err = mlxsw_sp_port_vp_mode_set(mlxsw_sp_port, true); |
| if (err) |
| return err; |
| err = mlxsw_sp_port_stp_set(mlxsw_sp_port, true); |
| if (err) |
| goto err_port_stp_set; |
| err = mlxsw_sp_port_vlan_set(mlxsw_sp_port, 2, VLAN_N_VID - 1, |
| true, false); |
| if (err) |
| goto err_port_vlan_set; |
| |
| for (; vid <= VLAN_N_VID - 1; vid++) { |
| err = mlxsw_sp_port_vid_learning_set(mlxsw_sp_port, |
| vid, false); |
| if (err) |
| goto err_vid_learning_set; |
| } |
| |
| return 0; |
| |
| err_vid_learning_set: |
| for (vid--; vid >= 1; vid--) |
| mlxsw_sp_port_vid_learning_set(mlxsw_sp_port, vid, true); |
| err_port_vlan_set: |
| mlxsw_sp_port_stp_set(mlxsw_sp_port, false); |
| err_port_stp_set: |
| mlxsw_sp_port_vp_mode_set(mlxsw_sp_port, false); |
| return err; |
| } |
| |
| static void mlxsw_sp_port_ovs_leave(struct mlxsw_sp_port *mlxsw_sp_port) |
| { |
| u16 vid; |
| |
| for (vid = VLAN_N_VID - 1; vid >= 1; vid--) |
| mlxsw_sp_port_vid_learning_set(mlxsw_sp_port, |
| vid, true); |
| |
| mlxsw_sp_port_vlan_set(mlxsw_sp_port, 2, VLAN_N_VID - 1, |
| false, false); |
| mlxsw_sp_port_stp_set(mlxsw_sp_port, false); |
| mlxsw_sp_port_vp_mode_set(mlxsw_sp_port, false); |
| } |
| |
| static int mlxsw_sp_netdevice_port_upper_event(struct net_device *lower_dev, |
| struct net_device *dev, |
| unsigned long event, void *ptr) |
| { |
| struct netdev_notifier_changeupper_info *info; |
| struct mlxsw_sp_port *mlxsw_sp_port; |
| struct netlink_ext_ack *extack; |
| struct net_device *upper_dev; |
| struct mlxsw_sp *mlxsw_sp; |
| int err = 0; |
| |
| mlxsw_sp_port = netdev_priv(dev); |
| mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| info = ptr; |
| extack = netdev_notifier_info_to_extack(&info->info); |
| |
| switch (event) { |
| case NETDEV_PRECHANGEUPPER: |
| upper_dev = info->upper_dev; |
| if (!is_vlan_dev(upper_dev) && |
| !netif_is_lag_master(upper_dev) && |
| !netif_is_bridge_master(upper_dev) && |
| !netif_is_ovs_master(upper_dev)) { |
| NL_SET_ERR_MSG_MOD(extack, "Unknown upper device type"); |
| return -EINVAL; |
| } |
| if (!info->linking) |
| break; |
| if (netdev_has_any_upper_dev(upper_dev) && |
| (!netif_is_bridge_master(upper_dev) || |
| !mlxsw_sp_bridge_device_is_offloaded(mlxsw_sp, |
| upper_dev))) { |
| NL_SET_ERR_MSG_MOD(extack, "Enslaving a port to a device that already has an upper device is not supported"); |
| return -EINVAL; |
| } |
| if (netif_is_lag_master(upper_dev) && |
| !mlxsw_sp_master_lag_check(mlxsw_sp, upper_dev, |
| info->upper_info, extack)) |
| return -EINVAL; |
| if (netif_is_lag_master(upper_dev) && vlan_uses_dev(dev)) { |
| NL_SET_ERR_MSG_MOD(extack, "Master device is a LAG master and this device has a VLAN"); |
| return -EINVAL; |
| } |
| if (netif_is_lag_port(dev) && is_vlan_dev(upper_dev) && |
| !netif_is_lag_master(vlan_dev_real_dev(upper_dev))) { |
| NL_SET_ERR_MSG_MOD(extack, "Can not put a VLAN on a LAG port"); |
| return -EINVAL; |
| } |
| if (netif_is_ovs_master(upper_dev) && vlan_uses_dev(dev)) { |
| NL_SET_ERR_MSG_MOD(extack, "Master device is an OVS master and this device has a VLAN"); |
| return -EINVAL; |
| } |
| if (netif_is_ovs_port(dev) && is_vlan_dev(upper_dev)) { |
| NL_SET_ERR_MSG_MOD(extack, "Can not put a VLAN on an OVS port"); |
| return -EINVAL; |
| } |
| if (is_vlan_dev(upper_dev) && |
| vlan_dev_vlan_id(upper_dev) == 1) { |
| NL_SET_ERR_MSG_MOD(extack, "Creating a VLAN device with VID 1 is unsupported: VLAN 1 carries untagged traffic"); |
| return -EINVAL; |
| } |
| break; |
| case NETDEV_CHANGEUPPER: |
| upper_dev = info->upper_dev; |
| if (netif_is_bridge_master(upper_dev)) { |
| if (info->linking) |
| err = mlxsw_sp_port_bridge_join(mlxsw_sp_port, |
| lower_dev, |
| upper_dev, |
| extack); |
| else |
| mlxsw_sp_port_bridge_leave(mlxsw_sp_port, |
| lower_dev, |
| upper_dev); |
| } else if (netif_is_lag_master(upper_dev)) { |
| if (info->linking) |
| err = mlxsw_sp_port_lag_join(mlxsw_sp_port, |
| upper_dev); |
| else |
| mlxsw_sp_port_lag_leave(mlxsw_sp_port, |
| upper_dev); |
| } else if (netif_is_ovs_master(upper_dev)) { |
| if (info->linking) |
| err = mlxsw_sp_port_ovs_join(mlxsw_sp_port); |
| else |
| mlxsw_sp_port_ovs_leave(mlxsw_sp_port); |
| } |
| break; |
| } |
| |
| return err; |
| } |
| |
| static int mlxsw_sp_netdevice_port_lower_event(struct net_device *dev, |
| unsigned long event, void *ptr) |
| { |
| struct netdev_notifier_changelowerstate_info *info; |
| struct mlxsw_sp_port *mlxsw_sp_port; |
| int err; |
| |
| mlxsw_sp_port = netdev_priv(dev); |
| info = ptr; |
| |
| switch (event) { |
| case NETDEV_CHANGELOWERSTATE: |
| if (netif_is_lag_port(dev) && mlxsw_sp_port->lagged) { |
| err = mlxsw_sp_port_lag_changed(mlxsw_sp_port, |
| info->lower_state_info); |
| if (err) |
| netdev_err(dev, "Failed to reflect link aggregation lower state change\n"); |
| } |
| break; |
| } |
| |
| return 0; |
| } |
| |
| static int mlxsw_sp_netdevice_port_event(struct net_device *lower_dev, |
| struct net_device *port_dev, |
| unsigned long event, void *ptr) |
| { |
| switch (event) { |
| case NETDEV_PRECHANGEUPPER: |
| case NETDEV_CHANGEUPPER: |
| return mlxsw_sp_netdevice_port_upper_event(lower_dev, port_dev, |
| event, ptr); |
| case NETDEV_CHANGELOWERSTATE: |
| return mlxsw_sp_netdevice_port_lower_event(port_dev, event, |
| ptr); |
| } |
| |
| return 0; |
| } |
| |
| static int mlxsw_sp_netdevice_lag_event(struct net_device *lag_dev, |
| unsigned long event, void *ptr) |
| { |
| struct net_device *dev; |
| struct list_head *iter; |
| int ret; |
| |
| netdev_for_each_lower_dev(lag_dev, dev, iter) { |
| if (mlxsw_sp_port_dev_check(dev)) { |
| ret = mlxsw_sp_netdevice_port_event(lag_dev, dev, event, |
| ptr); |
| if (ret) |
| return ret; |
| } |
| } |
| |
| return 0; |
| } |
| |
| static int mlxsw_sp_netdevice_port_vlan_event(struct net_device *vlan_dev, |
| struct net_device *dev, |
| unsigned long event, void *ptr, |
| u16 vid) |
| { |
| struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); |
| struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| struct netdev_notifier_changeupper_info *info = ptr; |
| struct netlink_ext_ack *extack; |
| struct net_device *upper_dev; |
| int err = 0; |
| |
| extack = netdev_notifier_info_to_extack(&info->info); |
| |
| switch (event) { |
| case NETDEV_PRECHANGEUPPER: |
| upper_dev = info->upper_dev; |
| if (!netif_is_bridge_master(upper_dev)) { |
| NL_SET_ERR_MSG_MOD(extack, "VLAN devices only support bridge and VRF uppers"); |
| return -EINVAL; |
| } |
| if (!info->linking) |
| break; |
| if (netdev_has_any_upper_dev(upper_dev) && |
| (!netif_is_bridge_master(upper_dev) || |
| !mlxsw_sp_bridge_device_is_offloaded(mlxsw_sp, |
| upper_dev))) { |
| NL_SET_ERR_MSG_MOD(extack, "Enslaving a port to a device that already has an upper device is not supported"); |
| return -EINVAL; |
| } |
| break; |
| case NETDEV_CHANGEUPPER: |
| upper_dev = info->upper_dev; |
| if (netif_is_bridge_master(upper_dev)) { |
| if (info->linking) |
| err = mlxsw_sp_port_bridge_join(mlxsw_sp_port, |
| vlan_dev, |
| upper_dev, |
| extack); |
| else |
| mlxsw_sp_port_bridge_leave(mlxsw_sp_port, |
| vlan_dev, |
| upper_dev); |
| } else { |
| err = -EINVAL; |
| WARN_ON(1); |
| } |
| break; |
| } |
| |
| return err; |
| } |
| |
| static int mlxsw_sp_netdevice_lag_port_vlan_event(struct net_device *vlan_dev, |
| struct net_device *lag_dev, |
| unsigned long event, |
| void *ptr, u16 vid) |
| { |
| struct net_device *dev; |
| struct list_head *iter; |
| int ret; |
| |
| netdev_for_each_lower_dev(lag_dev, dev, iter) { |
| if (mlxsw_sp_port_dev_check(dev)) { |
| ret = mlxsw_sp_netdevice_port_vlan_event(vlan_dev, dev, |
| event, ptr, |
| vid); |
| if (ret) |
| return ret; |
| } |
| } |
| |
| return 0; |
| } |
| |
| static int mlxsw_sp_netdevice_vlan_event(struct net_device *vlan_dev, |
| unsigned long event, void *ptr) |
| { |
| struct net_device *real_dev = vlan_dev_real_dev(vlan_dev); |
| u16 vid = vlan_dev_vlan_id(vlan_dev); |
| |
| if (mlxsw_sp_port_dev_check(real_dev)) |
| return mlxsw_sp_netdevice_port_vlan_event(vlan_dev, real_dev, |
| event, ptr, vid); |
| else if (netif_is_lag_master(real_dev)) |
| return mlxsw_sp_netdevice_lag_port_vlan_event(vlan_dev, |
| real_dev, event, |
| ptr, vid); |
| |
| return 0; |
| } |
| |
| static bool mlxsw_sp_is_vrf_event(unsigned long event, void *ptr) |
| { |
| struct netdev_notifier_changeupper_info *info = ptr; |
| |
| if (event != NETDEV_PRECHANGEUPPER && event != NETDEV_CHANGEUPPER) |
| return false; |
| return netif_is_l3_master(info->upper_dev); |
| } |
| |
| static int mlxsw_sp_netdevice_event(struct notifier_block *nb, |
| unsigned long event, void *ptr) |
| { |
| struct net_device *dev = netdev_notifier_info_to_dev(ptr); |
| struct mlxsw_sp_span_entry *span_entry; |
| struct mlxsw_sp *mlxsw_sp; |
| int err = 0; |
| |
| mlxsw_sp = container_of(nb, struct mlxsw_sp, netdevice_nb); |
| if (event == NETDEV_UNREGISTER) { |
| span_entry = mlxsw_sp_span_entry_find_by_port(mlxsw_sp, dev); |
| if (span_entry) |
| mlxsw_sp_span_entry_invalidate(mlxsw_sp, span_entry); |
| } |
| mlxsw_sp_span_respin(mlxsw_sp); |
| |
| if (mlxsw_sp_netdev_is_ipip_ol(mlxsw_sp, dev)) |
| err = mlxsw_sp_netdevice_ipip_ol_event(mlxsw_sp, dev, |
| event, ptr); |
| else if (mlxsw_sp_netdev_is_ipip_ul(mlxsw_sp, dev)) |
| err = mlxsw_sp_netdevice_ipip_ul_event(mlxsw_sp, dev, |
| event, ptr); |
| else if (event == NETDEV_CHANGEADDR || event == NETDEV_CHANGEMTU) |
| err = mlxsw_sp_netdevice_router_port_event(dev); |
| else if (mlxsw_sp_is_vrf_event(event, ptr)) |
| err = mlxsw_sp_netdevice_vrf_event(dev, event, ptr); |
| else if (mlxsw_sp_port_dev_check(dev)) |
| err = mlxsw_sp_netdevice_port_event(dev, dev, event, ptr); |
| else if (netif_is_lag_master(dev)) |
| err = mlxsw_sp_netdevice_lag_event(dev, event, ptr); |
| else if (is_vlan_dev(dev)) |
| err = mlxsw_sp_netdevice_vlan_event(dev, event, ptr); |
| |
| return notifier_from_errno(err); |
| } |
| |
| static struct notifier_block mlxsw_sp_inetaddr_valid_nb __read_mostly = { |
| .notifier_call = mlxsw_sp_inetaddr_valid_event, |
| }; |
| |
| static struct notifier_block mlxsw_sp_inetaddr_nb __read_mostly = { |
| .notifier_call = mlxsw_sp_inetaddr_event, |
| }; |
| |
| static struct notifier_block mlxsw_sp_inet6addr_valid_nb __read_mostly = { |
| .notifier_call = mlxsw_sp_inet6addr_valid_event, |
| }; |
| |
| static struct notifier_block mlxsw_sp_inet6addr_nb __read_mostly = { |
| .notifier_call = mlxsw_sp_inet6addr_event, |
| }; |
| |
| static const struct pci_device_id mlxsw_sp_pci_id_table[] = { |
| {PCI_VDEVICE(MELLANOX, PCI_DEVICE_ID_MELLANOX_SPECTRUM), 0}, |
| {0, }, |
| }; |
| |
| static struct pci_driver mlxsw_sp_pci_driver = { |
| .name = mlxsw_sp_driver_name, |
| .id_table = mlxsw_sp_pci_id_table, |
| }; |
| |
| static int __init mlxsw_sp_module_init(void) |
| { |
| int err; |
| |
| register_inetaddr_validator_notifier(&mlxsw_sp_inetaddr_valid_nb); |
| register_inetaddr_notifier(&mlxsw_sp_inetaddr_nb); |
| register_inet6addr_validator_notifier(&mlxsw_sp_inet6addr_valid_nb); |
| register_inet6addr_notifier(&mlxsw_sp_inet6addr_nb); |
| |
| err = mlxsw_core_driver_register(&mlxsw_sp_driver); |
| if (err) |
| goto err_core_driver_register; |
| |
| err = mlxsw_pci_driver_register(&mlxsw_sp_pci_driver); |
| if (err) |
| goto err_pci_driver_register; |
| |
| return 0; |
| |
| err_pci_driver_register: |
| mlxsw_core_driver_unregister(&mlxsw_sp_driver); |
| err_core_driver_register: |
| unregister_inet6addr_notifier(&mlxsw_sp_inet6addr_nb); |
| unregister_inet6addr_validator_notifier(&mlxsw_sp_inet6addr_valid_nb); |
| unregister_inetaddr_notifier(&mlxsw_sp_inetaddr_nb); |
| unregister_inetaddr_validator_notifier(&mlxsw_sp_inetaddr_valid_nb); |
| return err; |
| } |
| |
| static void __exit mlxsw_sp_module_exit(void) |
| { |
| mlxsw_pci_driver_unregister(&mlxsw_sp_pci_driver); |
| mlxsw_core_driver_unregister(&mlxsw_sp_driver); |
| unregister_inet6addr_notifier(&mlxsw_sp_inet6addr_nb); |
| unregister_inet6addr_validator_notifier(&mlxsw_sp_inet6addr_valid_nb); |
| unregister_inetaddr_notifier(&mlxsw_sp_inetaddr_nb); |
| unregister_inetaddr_validator_notifier(&mlxsw_sp_inetaddr_valid_nb); |
| } |
| |
| module_init(mlxsw_sp_module_init); |
| module_exit(mlxsw_sp_module_exit); |
| |
| MODULE_LICENSE("Dual BSD/GPL"); |
| MODULE_AUTHOR("Jiri Pirko <jiri@mellanox.com>"); |
| MODULE_DESCRIPTION("Mellanox Spectrum driver"); |
| MODULE_DEVICE_TABLE(pci, mlxsw_sp_pci_id_table); |
| MODULE_FIRMWARE(MLXSW_SP_FW_FILENAME); |
